711 lines
26 KiB
JavaScript
711 lines
26 KiB
JavaScript
/*
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* View framework for JamKazam.
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*
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* Processes proprietary attributes in markup to convert a set of HTML elements
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* into the JamKazam screen layout. This module is only responsible for size
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* and position. All other visual aspects should be elsewhere.
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*
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* See the layout-example.html file for a simple working example.
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*/
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(function(context,$) {
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"use strict";
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context.JK = context.JK || {};
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// Static function to hide the 'curtain' which hides the underlying
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// stuff until we can get it laid out. Called from both the main
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// client as well as the landing page.
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context.JK.hideCurtain = function(duration) {
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context.setTimeout(function() {
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$('.curtain').fadeOut(2*duration);
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}, duration);
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};
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context.JK.Layout = function() {
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// privates
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var logger = context.JK.logger;
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var me = null; // Reference to this instance for context sanity.
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var opts = {
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headerHeight: 75,
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sidebarWidth: 300,
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notifyHeight: 150,
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notifyGutter: 10,
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collapsedSidebar: 30,
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panelHeaderHeight: 36,
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gutter: 60, // Margin around the whole UI
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screenMargin: 0, // Margin around screens (not headers/sidebar)
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gridOuterMargin: 6, // Outer margin on Grids (added to screenMargin if screen)
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gridPadding: 8, // Padding around grid cells. Added to outer margin.
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animationDuration: 400,
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allowBodyOverflow: false // Allow tests to disable the body-no-scroll policy
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};
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var width = $(context).width();
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var height = $(context).height();
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var resizing = null;
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var sidebarVisible = true;
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var expandedPanel = null;
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var previousScreen = null;
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var currentScreen = null;
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var screenBindings = {};
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var dialogBindings = {};
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var wizardShowFunctions = {};
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function setup() {
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requiredStyles();
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hideAll();
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setInitialExpandedSidebarPanel();
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sizeScreens(width, height, '[layout="screen"]', true);
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positionOffscreens(width, height);
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$('[layout="sidebar"]').show();
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$('[layout="panel"]').show();
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layout();
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}
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function setInitialExpandedSidebarPanel() {
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expandedPanel = $('[layout="panel"]').first().attr("layout-id");
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}
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function layout() {
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width = $(context).width();
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height = $(context).height();
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// TODO
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// Work on naming. File is layout, class is Layout, this method
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// is layout and every other method starts with 'layoutX'. Perhaps
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// a little redundant?
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layoutCurtain(width, height);
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layoutDialogOverlay(width, height);
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layoutScreens(width, height);
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layoutSidebar(width, height);
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layoutHeader(width, height);
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layoutNotify(width, height);
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layoutFooter(width, height);
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}
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function layoutCurtain(screenWidth, screenHeight) {
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var curtainStyle = {
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position: 'absolute',
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width: screenWidth + 'px',
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height: screenHeight + 'px'
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};
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$('.curtain').css(curtainStyle);
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}
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function layoutDialogOverlay(screenWidth, screenHeight) {
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var style = {
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position: 'absolute',
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width: screenWidth + 'px',
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height: screenHeight + 'px'
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};
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$('.dialog-overlay').css(style);
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}
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function layoutScreens(screenWidth, screenHeight) {
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var previousScreenSelector = '[layout-id="' + previousScreen + '"]';
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var currentScreenSelector = '[layout-id="' + currentScreen + '"]';
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$(currentScreenSelector).show();
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var width = screenWidth - (2 * opts.gutter + 2 * opts.screenMargin);
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var left = -1 * width - 100;
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if (currentScreenSelector === previousScreenSelector) {
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left = $(currentScreenSelector).css("left");
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if (left) {
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left = left.split("px")[0];
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}
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}
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$(previousScreenSelector).animate({left: left}, {duration: opts.animationDuration, queue: false});
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sizeScreens(screenWidth, screenHeight, '[layout="screen"]');
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positionOffscreens(screenWidth, screenHeight);
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positionOnscreen(screenWidth, screenHeight);
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}
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function sizeScreens(screenWidth, screenHeight, selector, immediate) {
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var duration = opts.animationDuration;
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if (immediate) {
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duration = 0;
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}
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var width = screenWidth - (2 * opts.gutter + 2 * opts.screenMargin);
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if (sidebarVisible) {
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width -= (opts.sidebarWidth + 2*opts.gridPadding);
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} else {
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width -= opts.collapsedSidebar + 2*opts.gridPadding;
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width += opts.gutter; // Add back in the right gutter width.
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}
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var height = screenHeight - opts.headerHeight - (2 * opts.gutter + 2 * opts.screenMargin);
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var css = {
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width: width,
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height: height
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};
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var $screens = $(selector);
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$screens.animate(css, {duration:duration, queue:false});
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layoutHomeScreen(width, height);
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}
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/**
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* Postition all screens that are not the current screen.
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*/
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function positionOffscreens(screenWidth, screenHeight) {
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var top = opts.headerHeight + opts.gutter + opts.screenMargin;
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var left = -1 * (screenWidth + 2*opts.gutter);
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var $screens = $('[layout="screen"]').not('[layout-id="' + currentScreen + '"]');
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$screens.css({
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top: top,
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left: left
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});
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}
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/**
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* Position the current screen
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*/
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function positionOnscreen(screenWidth, screenHeight, immediate) {
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var duration = opts.animationDuration;
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if (immediate) {
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duration = 0;
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}
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var top = opts.headerHeight + opts.gutter + opts.screenMargin;
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var left = opts.gutter + opts.screenMargin;
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var $screen = $('[layout-id="' + currentScreen + '"]');
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$screen.animate({
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top: top,
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left: left,
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overflow: 'auto'
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}, duration);
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}
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function layoutHomeScreen(homeScreenWidth, homeScreenHeight) {
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var $grid = $('[layout-grid]');
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var gridWidth = homeScreenWidth;
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var gridHeight = homeScreenHeight;
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$grid.css({width:gridWidth, height: gridHeight});
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var layout = $grid.attr('layout-grid');
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if (!layout)
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return;
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var gridRows = layout.split('x')[0];
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var gridCols = layout.split('x')[1];
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$grid.children().each(function() {
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var childPosition = $(this).attr("layout-grid-position");
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var childRow = childPosition.split(',')[1];
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var childCol = childPosition.split(',')[0];
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var childRowspan = $(this).attr("layout-grid-rows");
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var childColspan = $(this).attr("layout-grid-columns");
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var childLayout = me.getCardLayout(gridWidth, gridHeight, gridRows, gridCols,
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childRow, childCol, childRowspan, childColspan);
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$(this).animate({
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width: childLayout.width,
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height: childLayout.height,
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top: childLayout.top,
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left: childLayout.left
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}, opts.animationDuration);
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});
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}
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function layoutSidebar(screenWidth, screenHeight) {
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var width = opts.sidebarWidth;
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var expanderHeight = $('[layout-sidebar-expander]').height();
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var height = screenHeight - opts.headerHeight - 2 * opts.gutter + expanderHeight;
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var right = opts.gutter;
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if (!sidebarVisible) {
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// Negative right to hide most of sidebar
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right = (0 - opts.sidebarWidth) + opts.collapsedSidebar;
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}
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var top = opts.headerHeight + opts.gutter - expanderHeight;
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var css = {
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width: width,
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height: height,
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top: top,
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right: right
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};
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$('[layout="sidebar"]').animate(css, opts.animationDuration);
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layoutPanels(width, height);
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if (sidebarVisible) {
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$('[layout-panel="collapsed"]').hide();
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$('[layout-panel="expanded"]').show();
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$('[layout-sidebar-expander="hidden"]').hide();
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$('[layout-sidebar-expander="visible"]').show();
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} else {
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$('[layout-panel="collapsed"]').show();
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$('[layout-panel="expanded"]').hide();
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$('[layout-sidebar-expander="hidden"]').show();
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$('[layout-sidebar-expander="visible"]').hide();
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}
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}
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function layoutPanels(sidebarWidth, sidebarHeight) {
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// TODO - don't like the accordian - poor usability. Requires longest mouse
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// reach when switching panels. Probably better to do tabs.
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if (!sidebarVisible) {
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return;
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}
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var $expandedPanelContents = $('[layout-id="' + expandedPanel + '"] [layout-panel="contents"]');
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var combinedHeaderHeight = $('[layout-panel="contents"]').length * opts.panelHeaderHeight;
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var searchHeight = $('.sidebar .search').first().height();
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var expanderHeight = $('[layout-sidebar-expander]').height();
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var expandedPanelHeight = sidebarHeight - (combinedHeaderHeight + expanderHeight + searchHeight);
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$('[layout-panel="contents"]').hide();
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$('[layout-panel="contents"]').css({"height": "1px"});
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$expandedPanelContents.show();
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$expandedPanelContents.animate({"height": expandedPanelHeight + "px"}, opts.animationDuration);
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}
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function layoutHeader(screenWidth, screenHeight) {
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var width = screenWidth - 2*opts.gutter;
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var height = opts.headerHeight - opts.gutter;
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var top = opts.gutter;
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var left = opts.gutter;
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var css = {
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width: width + "px",
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height: height + "px",
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top: top + "px",
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left: left + "px"
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};
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$('[layout="header"]').css(css);
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}
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function layoutNotify(screenWidth, screenHeight) {
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var $notify = $('[layout="notify"]');
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var nHeight = $notify.height();
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var notifyStyle = {
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bottom: '0px',
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position: 'fixed'
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};
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$notify.css(notifyStyle);
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}
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function layoutFooter(screenWidth, screenHeight) {
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var $footer = $('#footer');
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var nHeight = $footer.height();
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var footerStyle = {
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top: (screenHeight - 80) + 'px'
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};
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var width = screenWidth - (2 * opts.gutter + 2 * opts.screenMargin);
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var left = -1 * width - 100;
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$footer.animate({ "left" : opts.gutter, "width" : width, "top": (screenHeight - 78) + "px"}, opts.animationDuration);
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}
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function requiredStyles() {
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var bodyStyle = {
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margin: '0px',
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padding: '0px',
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overflow: 'hidden'
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};
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if (opts.allowBodyOverflow) {
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delete bodyStyle.overflow;
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}
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$('body').css(bodyStyle);
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var layoutStyle = {
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position: 'absolute',
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margin: '0px',
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padding: '0px'
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};
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$('[layout]').css(layoutStyle);
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$('[layout="notify"]').css({"z-index": "9", "padding": "20px"});
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$('[layout="panel"]').css({position: 'relative'});
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$('[layout-panel="expanded"] [layout-panel="header"]').css({
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margin: "0px",
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padding: "0px",
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height: opts.panelHeaderHeight + "px"
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});
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$('[layout-grid]').css({
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position: "relative"
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});
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$('[layout-grid]').children().css({
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position: "absolute"
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});
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var curtainStyle = {
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position: "absolute",
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margin: '0px',
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padding: '0px',
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overflow: 'hidden',
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zIndex: 100
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};
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$('.curtain').css(curtainStyle);
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}
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function hideAll() {
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$('[layout]').hide();
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$('[layout="header"]').show();
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}
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function showSidebar() {
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sidebarVisible = true;
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layout();
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}
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function hideSidebar() {
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sidebarVisible = false;
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layout();
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}
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function toggleSidebar() {
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if (sidebarVisible) {
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hideSidebar();
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} else {
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showSidebar();
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}
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}
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function hideDialogs() {
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// TODO - may need dialogEvents here for specific dialogs.
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$('[layout="dialog"]').hide();
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$('.dialog-overlay').hide();
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}
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function tabClicked(evt) {
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evt.preventDefault();
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var destination = $(evt.currentTarget).attr('tab-target');
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$('[tab-target]').removeClass('selected');
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$(evt.currentTarget).addClass('selected');
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$('.tab').hide();
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$('[tab-id="' + destination + '"]').show();
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}
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function linkClicked(evt) {
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evt.preventDefault();
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// allow links to be disabled
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if($(evt.currentTarget).hasClass("disabled") ) {
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return;
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}
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var destination = $(evt.currentTarget).attr('layout-link');
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var destinationType = $('[layout-id="' + destination + '"]').attr("layout");
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if (destinationType === "screen") {
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context.location = '#/' + destination;
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} else if (destinationType === "dialog") {
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showDialog(destination);
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}
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}
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function close(evt) {
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var $target = $(evt.currentTarget).closest('[layout]');
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var layoutId = $target.attr('layout-id');
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var isDialog = ($target.attr('layout') === 'dialog');
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if (isDialog) {
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closeDialog(layoutId);
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} else {
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$target.hide();
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}
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return false;
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}
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function closeDialog(dialog) {
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var $dialog = $('[layout-id="' + dialog + '"]');
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dialogEvent(dialog, 'beforeHide');
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$('.dialog-overlay').hide();
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$dialog.hide();
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dialogEvent(dialog, 'afterHide');
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}
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function screenEvent(screen, evtName, data) {
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if (screen && screen in screenBindings) {
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if (evtName in screenBindings[screen]) {
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screenBindings[screen][evtName].call(me, data);
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}
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}
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}
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function dialogEvent(dialog, evtName, data) {
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if (dialog && dialog in dialogBindings) {
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if (evtName in dialogBindings[dialog]) {
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dialogBindings[dialog][evtName].call(me, data);
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}
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}
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}
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function changeToScreen(screen, data) {
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previousScreen = currentScreen;
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currentScreen = screen;
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screenEvent(previousScreen, 'beforeHide', data);
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screenEvent(currentScreen, 'beforeShow', data);
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// For now -- it seems we want it open always.
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// TODO - support user preference here? Remember how they left it?
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sidebarVisible = true;
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/*
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var openSidebarScreens = [
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'home', 'session', 'createSession',
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'findSession', 'searchResults'
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];
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$.each(openSidebarScreens, function() {
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logger.debug("comparing " + this + " to " + currentScreen);
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if (this === currentScreen) {
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sidebarVisible = true;
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return false;
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}
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});
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*/
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layout();
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screenEvent(previousScreen, 'afterHide', data);
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screenEvent(currentScreen, 'afterShow', data);
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// Show any requested dialog
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if ("d" in data) {
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showDialog(data.d);
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}
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}
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function showDialog(dialog) {
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dialogEvent(dialog, 'beforeShow');
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$('.dialog-overlay').show();
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centerDialog(dialog);
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$('[layout-id="' + dialog + '"]').show();
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dialogEvent(dialog, 'afterShow');
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}
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function centerDialog(dialog) {
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var $dialog = $('[layout-id="' + dialog + '"]');
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$dialog.css({
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left: width/2 - ($dialog.width()/2) + "px",
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top: height/2 - ($dialog.height()/2) + "px"
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});
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}
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function panelHeaderClicked(evt) {
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evt.preventDefault();
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expandedPanel = $(evt.currentTarget).closest('[layout="panel"]').attr("layout-id");
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layout();
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return false;
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}
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function wizardLinkClicked(evt) {
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evt.preventDefault();
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var targetStepId = $(evt.currentTarget).attr("layout-wizard-link");
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setWizardStep(targetStepId);
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return false;
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}
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function setWizardStep(targetStepId) {
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var selector = '[layout-wizard-step="' + targetStepId + '"]';
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var $targetStep = $(selector);
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var stepDialogTitle = $targetStep.attr("dialog-title");
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if (stepDialogTitle) {
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var $myDialog = $targetStep.closest('[layout="dialog"]');
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var $myTitle = $('.content-head h1', $myDialog);
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$myTitle.html(stepDialogTitle);
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}
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// Hide all steps:
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// Invoke the 'show' function, if present prior to actually showing.
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if (context._.contains(context._.keys(wizardShowFunctions), targetStepId)) {
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wizardShowFunctions[targetStepId]();
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}
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$('[layout-wizard-step]').hide();
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$targetStep.show();
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var ftuePurpose = $targetStep.attr("dialog-purpose");
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context.JK.GA.trackFTUECompletion(ftuePurpose, context.JK.detectOS());
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}
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function trackLocationChange(e) {
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context.JK.GA.virtualPageView(location.pathname + location.search + location.hash);
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}
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function events() {
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$(context).resize(function() {
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if (resizing) {
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context.clearTimeout(resizing);
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}
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resizing = context.setTimeout(layout, 80);
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});
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$('body').on('click', '[layout-link]', linkClicked);
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$('[layout-action="close"]').on('click', close);
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$('[layout-sidebar-expander]').on('click', toggleSidebar);
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$('[layout-panel="expanded"] [layout-panel="header"]').on('click', panelHeaderClicked);
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$('[layout-wizard-link]').on('click', wizardLinkClicked);
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$('[tab-target]').on('click', tabClicked);
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$(context).on('hashchange', trackLocationChange);
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}
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// public functions
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this.getOpts = function() {
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return opts;
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};
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// used for concurrent notifications
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var notifyQueue = [];
|
|
var firstNotification = false;
|
|
var notifyDetails;
|
|
|
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this.notify = function(message, descriptor) {
|
|
var $notify = $('[layout="notify"]');
|
|
|
|
if (notifyQueue.length === 0) {
|
|
firstNotification = true;
|
|
setNotificationInfo(message, descriptor);
|
|
}
|
|
|
|
notifyQueue.push({message: message, descriptor: descriptor});
|
|
$notify.slideDown(2000)
|
|
.delay(2000)
|
|
.slideUp({
|
|
duration: 2000,
|
|
queue: true,
|
|
complete: function() {
|
|
notifyDetails = notifyQueue.shift();
|
|
|
|
// shift 1 more time if this is first notification being displayed
|
|
if (firstNotification) {
|
|
notifyDetails = notifyQueue.shift();
|
|
firstNotification = false;
|
|
}
|
|
|
|
if (notifyDetails !== undefined) {
|
|
setNotificationInfo(notifyDetails.message, notifyDetails.descriptor);
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
function setNotificationInfo(message, descriptor) {
|
|
var $notify = $('[layout="notify"]');
|
|
$('h2', $notify).text(message.title);
|
|
$('p', $notify).html(message.text);
|
|
|
|
if (message.icon_url) {
|
|
$('#avatar', $notify).attr('src', message.icon_url);
|
|
$('#avatar', $notify).show();
|
|
}
|
|
else {
|
|
$('#avatar', $notify).hide();
|
|
}
|
|
|
|
if (message.detail) {
|
|
$('div.detail', $notify).html(message.detail).show();
|
|
}
|
|
else {
|
|
$('div.detail', $notify).hide();
|
|
}
|
|
|
|
if (descriptor) {
|
|
if (descriptor.ok_text) {
|
|
$('#ok-button', $notify).html(descriptor.ok_text);
|
|
}
|
|
else {
|
|
$('#ok-button', $notify).html("OKAY");
|
|
}
|
|
|
|
if (descriptor.ok_callback !== undefined) {
|
|
$('#ok-button', $notify).click(function() {
|
|
if (descriptor.ok_callback_args) {
|
|
logger.debug("descriptor.ok_callback_args=" + descriptor.ok_callback_args);
|
|
descriptor.ok_callback(descriptor.ok_callback_args);
|
|
return false;
|
|
}
|
|
else {
|
|
descriptor.ok_callback();
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
|
|
if (descriptor.cancel_text) {
|
|
$('#cancel-button', $notify).html(descriptor.cancel_text);
|
|
}
|
|
else {
|
|
if(descriptor.no_cancel) {
|
|
$('#cancel-button', $notify).hide();
|
|
}
|
|
else {
|
|
$('#cancel-button', $notify).html("CANCEL");
|
|
}
|
|
}
|
|
|
|
if (descriptor.cancel_callback !== undefined) {
|
|
$('#cancel-button', $notify).click(function() {
|
|
if (descriptor.cancel_callback_args) {
|
|
logger.debug("descriptor.cancel_callback_args=" + descriptor.cancel_callback_args);
|
|
descriptor.cancel_callback(descriptor.cancel_callback_args);
|
|
return false;
|
|
}
|
|
else {
|
|
descriptor.cancel_callback();
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
else {
|
|
$('#ok-button', $notify).html("OKAY");
|
|
$('#cancel-button', $notify).html("CANCEL");
|
|
}
|
|
}
|
|
|
|
this.setWizardStep = setWizardStep;
|
|
|
|
this.changeToScreen = function(screen, data) {
|
|
changeToScreen(screen, data);
|
|
};
|
|
|
|
this.showDialog = function(dialog) {
|
|
showDialog(dialog);
|
|
};
|
|
|
|
this.close = function(evt) {
|
|
close(evt);
|
|
};
|
|
|
|
this.closeDialog = closeDialog;
|
|
|
|
/**
|
|
* Given information on a grid, and a given card's grid settings, use the
|
|
* margin options and return a list of [top, left, width, height]
|
|
* for the cell.
|
|
*/
|
|
this.getCardLayout = function(gridWidth, gridHeight, gridRows, gridCols,
|
|
row, col, rowspan, colspan) {
|
|
|
|
var _gridWidth = gridWidth + 3*opts.gridPadding;
|
|
var _gridHeight = gridHeight + 3*opts.gridPadding;
|
|
var cellWidth, cellHeight, top, left, width, height;
|
|
|
|
cellWidth = Math.floor((_gridWidth-2*opts.gridOuterMargin) / gridCols);
|
|
cellHeight = Math.floor((_gridHeight-2*opts.gridOuterMargin) / gridRows);
|
|
width = colspan * cellWidth - 2*opts.gridPadding;
|
|
height = rowspan * cellHeight - 2*opts.gridPadding;
|
|
top = row * cellHeight;// + opts.gridOuterMargin; // + opts.gridPadding;
|
|
left = col * cellWidth;// + opts.gridOuterMargin; // + opts.gridPadding;
|
|
|
|
return {
|
|
top: top,
|
|
left: left,
|
|
width: width,
|
|
height: height
|
|
};
|
|
};
|
|
|
|
this.bindScreen = function(screen, handler) {
|
|
screenBindings[screen] = handler;
|
|
};
|
|
|
|
this.bindDialog = function(dialog, handler) {
|
|
dialogBindings[dialog] = handler;
|
|
};
|
|
|
|
this.registerWizardStepFunction = function(stepId, showFunction) {
|
|
wizardShowFunctions[stepId] = showFunction;
|
|
};
|
|
|
|
this.initialize = function(inOpts) {
|
|
me = this;
|
|
opts = $.extend(opts, inOpts);
|
|
setup();
|
|
events();
|
|
};
|
|
|
|
return this;
|
|
|
|
};
|
|
|
|
}(window, jQuery)); |