infusion
Version:
Infusion is an application framework for developing flexible stuff with JavaScript
380 lines (338 loc) • 14 kB
JavaScript
/*
Copyright 2011-2016 OCAD University
Copyright 2011 Lucendo Development Ltd.
Copyright 2012 Raising the Floor - US
Copyright 2015-2016 Raising the Floor - International
Licensed under the Educational Community License (ECL), Version 2.0 or the New
BSD license. You may not use this file except in compliance with one these
Licenses.
You may obtain a copy of the ECL 2.0 License and BSD License at
https://github.com/fluid-project/infusion/raw/master/Infusion-LICENSE.txt
*/
var fluid_3_0_0 = fluid_3_0_0 || {};
(function ($, fluid) {
"use strict";
/******
* ToC *
*******/
fluid.registerNamespace("fluid.tableOfContents");
fluid.tableOfContents.headingTextToAnchorInfo = function (heading) {
var id = fluid.allocateSimpleId(heading);
var anchorInfo = {
id: id,
url: "#" + id
};
return anchorInfo;
};
fluid.tableOfContents.locateHeadings = function (that) {
var headings = that.locate("headings");
fluid.each(that.options.ignoreForToC, function (sel) {
headings = headings.not(sel).not(sel + " :header");
});
return headings;
};
fluid.tableOfContents.refreshView = function (that) {
var headings = that.locateHeadings();
that.anchorInfo = fluid.transform(headings, function (heading) {
return that.headingTextToAnchorInfo(heading);
});
var headingsModel = that.modelBuilder.assembleModel(headings, that.anchorInfo);
that.applier.change("", headingsModel);
that.events.onRefresh.fire();
};
fluid.defaults("fluid.tableOfContents", {
gradeNames: ["fluid.viewComponent"],
components: {
levels: {
type: "fluid.tableOfContents.levels",
createOnEvent: "onCreate",
container: "{tableOfContents}.dom.tocContainer",
options: {
model: {
headings: "{tableOfContents}.model"
},
events: {
afterRender: "{tableOfContents}.events.afterRender"
},
listeners: {
"{tableOfContents}.events.onRefresh": "{that}.refreshView"
},
strings: "{tableOfContents}.options.strings"
}
},
modelBuilder: {
type: "fluid.tableOfContents.modelBuilder"
}
},
model: [],
invokers: {
headingTextToAnchorInfo: "fluid.tableOfContents.headingTextToAnchorInfo",
locateHeadings: {
funcName: "fluid.tableOfContents.locateHeadings",
args: ["{that}"]
},
refreshView: {
funcName: "fluid.tableOfContents.refreshView",
args: ["{that}"]
},
// TODO: is it weird to have hide and show on a component?
hide: {
"this": "{that}.dom.tocContainer",
"method": "hide"
},
show: {
"this": "{that}.dom.tocContainer",
"method": "show"
}
},
strings: {
tocHeader: "Table of Contents"
},
selectors: {
headings: ":header:visible",
tocContainer: ".flc-toc-tocContainer"
},
ignoreForToC: {
tocContainer: "{that}.options.selectors.tocContainer"
},
events: {
onRefresh: null,
afterRender: null,
onReady: {
events: {
"onCreate": "onCreate",
"afterRender": "afterRender"
},
args: ["{that}"]
}
},
listeners: {
"onCreate.refreshView": "{that}.refreshView"
}
});
/*******************
* ToC ModelBuilder *
********************/
fluid.registerNamespace("fluid.tableOfContents.modelBuilder");
fluid.tableOfContents.modelBuilder.toModel = function (headingInfo, modelLevelFn) {
var headings = fluid.copy(headingInfo);
var buildModelLevel = function (headings, level) {
var modelLevel = [];
while (headings.length > 0) {
var heading = headings[0];
if (heading.level < level) {
break;
}
if (heading.level > level) {
var subHeadings = buildModelLevel(headings, level + 1);
if (modelLevel.length > 0) {
modelLevel[modelLevel.length - 1].headings = subHeadings;
} else {
modelLevel = modelLevelFn(modelLevel, subHeadings);
}
}
if (heading.level === level) {
modelLevel.push(heading);
headings.shift();
}
}
return modelLevel;
};
return buildModelLevel(headings, 1);
};
fluid.tableOfContents.modelBuilder.gradualModelLevelFn = function (modelLevel, subHeadings) {
// Clone the subHeadings because we don't want to modify the reference of the subHeadings.
// the reference will affect the equality condition in generateTree(), resulting an unwanted tree.
var subHeadingsClone = fluid.copy(subHeadings);
subHeadingsClone[0].level--;
return subHeadingsClone;
};
fluid.tableOfContents.modelBuilder.skippedModelLevelFn = function (modelLevel, subHeadings) {
modelLevel.push({headings: subHeadings});
return modelLevel;
};
fluid.tableOfContents.modelBuilder.convertToHeadingObjects = function (that, headings, anchorInfo) {
headings = $(headings);
return fluid.transform(headings, function (heading, index) {
return {
level: that.headingCalculator.getHeadingLevel(heading),
text: $(heading).text(),
url: anchorInfo[index].url
};
});
};
fluid.tableOfContents.modelBuilder.assembleModel = function (that, headings, anchorInfo) {
var headingInfo = that.convertToHeadingObjects(headings, anchorInfo);
return that.toModel(headingInfo);
};
fluid.defaults("fluid.tableOfContents.modelBuilder", {
gradeNames: ["fluid.component"],
components: {
headingCalculator: {
type: "fluid.tableOfContents.modelBuilder.headingCalculator"
}
},
invokers: {
toModel: {
funcName: "fluid.tableOfContents.modelBuilder.toModel",
args: ["{arguments}.0", "{modelBuilder}.modelLevelFn"]
},
modelLevelFn: "fluid.tableOfContents.modelBuilder.gradualModelLevelFn",
convertToHeadingObjects: "fluid.tableOfContents.modelBuilder.convertToHeadingObjects({that}, {arguments}.0, {arguments}.1)", // headings, anchorInfo
assembleModel: "fluid.tableOfContents.modelBuilder.assembleModel({that}, {arguments}.0, {arguments}.1)" // headings, anchorInfo
}
});
/*************************************
* ToC ModelBuilder headingCalculator *
**************************************/
fluid.registerNamespace("fluid.tableOfContents.modelBuilder.headingCalculator");
fluid.tableOfContents.modelBuilder.headingCalculator.getHeadingLevel = function (that, heading) {
return that.options.levels.indexOf(heading.tagName) + 1;
};
fluid.defaults("fluid.tableOfContents.modelBuilder.headingCalculator", {
gradeNames: ["fluid.component"],
invokers: {
getHeadingLevel: "fluid.tableOfContents.modelBuilder.headingCalculator.getHeadingLevel({that}, {arguments}.0)" // heading
},
levels: ["H1", "H2", "H3", "H4", "H5", "H6"]
});
/*************
* ToC Levels *
**************/
fluid.registerNamespace("fluid.tableOfContents.levels");
/**
* Create an object model based on the type and ID. The object should contain an
* ID that maps the selectors (ie. level1:), and the object should contain a children
* @param {String} type - Accepted values are: level, items
* @param {Integer} ID - The current level which is used here as the ID.
* @return {Object} - An object that models the level based on the type and ID.
*/
fluid.tableOfContents.levels.objModel = function (type, ID) {
var objModel = {
ID: type + ID + ":",
children: []
};
return objModel;
};
/*
* Configure item object when item object has no text, uri, level in it.
* defaults to add a decorator to hide the bullets.
*/
fluid.tableOfContents.levels.handleEmptyItemObj = function (itemObj) {
itemObj.decorators = [{
type: "addClass",
classes: "fl-tableOfContents-hide-bullet"
}];
};
/**
* @param {Object} headingsModel - that.model, the model with all the headings, it should be in the format of {headings: [...]}
* @param {Integer} currentLevel - the current level we want to generate the tree for. default to 1 if not defined.
* @return {Object} - A tree that looks like {children: [{ID: x, subTree:[...]}, ...]}
*/
fluid.tableOfContents.levels.generateTree = function (headingsModel, currentLevel) {
currentLevel = currentLevel || 0;
var levelObj = fluid.tableOfContents.levels.objModel("level", currentLevel);
// FLUID-4352, run generateTree if there are headings in the model.
if (headingsModel.headings.length === 0) {
return currentLevel ? [] : {children: []};
}
// base case: level is 0, returns {children:[generateTree(nextLevel)]}
// purpose is to wrap the first level with a children object.
if (currentLevel === 0) {
var tree = {
children: [
fluid.tableOfContents.levels.generateTree(headingsModel, currentLevel + 1)
]
};
return tree;
}
// Loop through the heading array, which can have multiple headings on the same level
$.each(headingsModel.headings, function (index, model) {
var itemObj = fluid.tableOfContents.levels.objModel("items", currentLevel);
var linkObj = {
ID: "link" + currentLevel,
target: model.url,
linktext: model.text
};
// If level is undefined, then add decorator to it, otherwise add the links to it.
if (!model.level) {
fluid.tableOfContents.levels.handleEmptyItemObj(itemObj);
} else {
itemObj.children.push(linkObj);
}
// If there are sub-headings, go into the next level recursively
if (model.headings) {
itemObj.children.push(fluid.tableOfContents.levels.generateTree(model, currentLevel + 1));
}
// At this point, the itemObj should be in a tree format with sub-headings children
levelObj.children.push(itemObj);
});
return levelObj;
};
/**
* @param {Object} that - The component itself.
* @return {Object} - Returned produceTree must be in {headings: [trees]}
*/
fluid.tableOfContents.levels.produceTree = function (that) {
var tree = fluid.tableOfContents.levels.generateTree(that.model);
// Add the header to the tree
tree.children.push({
ID: "tocHeader",
messagekey: "tocHeader"
});
return tree;
};
fluid.tableOfContents.levels.fetchResources = function (that) {
fluid.fetchResources(that.options.resources, function () {
that.container.append(that.options.resources.template.resourceText);
that.refreshView();
});
};
fluid.defaults("fluid.tableOfContents.levels", {
gradeNames: ["fluid.rendererComponent"],
produceTree: "fluid.tableOfContents.levels.produceTree",
strings: {
tocHeader: "Table of Contents"
},
selectors: {
tocHeader: ".flc-toc-header",
level1: ".flc-toc-levels-level1",
level2: ".flc-toc-levels-level2",
level3: ".flc-toc-levels-level3",
level4: ".flc-toc-levels-level4",
level5: ".flc-toc-levels-level5",
level6: ".flc-toc-levels-level6",
items1: ".flc-toc-levels-items1",
items2: ".flc-toc-levels-items2",
items3: ".flc-toc-levels-items3",
items4: ".flc-toc-levels-items4",
items5: ".flc-toc-levels-items5",
items6: ".flc-toc-levels-items6",
link1: ".flc-toc-levels-link1",
link2: ".flc-toc-levels-link2",
link3: ".flc-toc-levels-link3",
link4: ".flc-toc-levels-link4",
link5: ".flc-toc-levels-link5",
link6: ".flc-toc-levels-link6"
},
repeatingSelectors: ["level1", "level2", "level3", "level4", "level5", "level6", "items1", "items2", "items3", "items4", "items5", "items6"],
model: {
headings: [] // [text: heading, url: linkURL, headings: [ an array of subheadings in the same format]
},
listeners: {
"onCreate.fetchResources": "fluid.tableOfContents.levels.fetchResources"
},
resources: {
template: {
forceCache: true,
url: "../html/TableOfContents.html"
}
},
rendererFnOptions: {
noexpand: true
},
rendererOptions: {
debugMode: false
}
});
})(jQuery, fluid_3_0_0);