mirror of
https://github.com/Jermolene/TiddlyWiki5
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a409536ad0
* prevent scroll-chaining in modals * make body overflow hidden to prevent background scrolling
252 lines
7.9 KiB
JavaScript
252 lines
7.9 KiB
JavaScript
/*\
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title: $:/core/modules/utils/dom/modal.js
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type: application/javascript
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module-type: utils
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Modal message mechanism
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var widget = require("$:/core/modules/widgets/widget.js");
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var navigator = require("$:/core/modules/widgets/navigator.js");
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var Modal = function(wiki) {
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this.wiki = wiki;
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this.modalCount = 0;
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};
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/*
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Display a modal dialogue
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title: Title of tiddler to display
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options: see below
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Options include:
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downloadLink: Text of a big download link to include
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*/
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Modal.prototype.display = function(title,options) {
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options = options || {};
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this.srcDocument = options.variables && (options.variables.rootwindow === "true" ||
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options.variables.rootwindow === "yes") ? document :
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(options.event && options.event.event && options.event.event.target ? options.event.event.target.ownerDocument : document);
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this.srcWindow = this.srcDocument.defaultView;
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var self = this,
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refreshHandler,
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duration = $tw.utils.getAnimationDuration(),
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tiddler = this.wiki.getTiddler(title);
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// Don't do anything if the tiddler doesn't exist
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if(!tiddler) {
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return;
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}
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// Create the variables
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var variables = $tw.utils.extend({
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currentTiddler: title,
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"tv-story-list": (options.event && options.event.widget ? options.event.widget.getVariable("tv-story-list") : ""),
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"tv-history-list": (options.event && options.event.widget ? options.event.widget.getVariable("tv-history-list") : "")
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},options.variables);
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// Create the wrapper divs
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var wrapper = this.srcDocument.createElement("div"),
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modalBackdrop = this.srcDocument.createElement("div"),
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modalWrapper = this.srcDocument.createElement("div"),
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modalHeader = this.srcDocument.createElement("div"),
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headerTitle = this.srcDocument.createElement("h3"),
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modalBody = this.srcDocument.createElement("div"),
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modalLink = this.srcDocument.createElement("a"),
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modalFooter = this.srcDocument.createElement("div"),
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modalFooterHelp = this.srcDocument.createElement("span"),
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modalFooterButtons = this.srcDocument.createElement("span");
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// Up the modal count and adjust the body class
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this.modalCount++;
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this.adjustPageClass();
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// Add classes
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$tw.utils.addClass(wrapper,"tc-modal-wrapper");
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if(tiddler.fields && tiddler.fields.class) {
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$tw.utils.addClass(wrapper,tiddler.fields.class);
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}
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$tw.utils.addClass(modalBackdrop,"tc-modal-backdrop");
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$tw.utils.addClass(modalWrapper,"tc-modal");
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$tw.utils.addClass(modalHeader,"tc-modal-header");
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$tw.utils.addClass(modalBody,"tc-modal-body");
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$tw.utils.addClass(modalFooter,"tc-modal-footer");
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// Join them together
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wrapper.appendChild(modalBackdrop);
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wrapper.appendChild(modalWrapper);
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modalHeader.appendChild(headerTitle);
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modalWrapper.appendChild(modalHeader);
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modalWrapper.appendChild(modalBody);
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modalFooter.appendChild(modalFooterHelp);
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modalFooter.appendChild(modalFooterButtons);
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modalWrapper.appendChild(modalFooter);
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var navigatorTree = {
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"type": "navigator",
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"attributes": {
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"story": {
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"name": "story",
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"type": "string",
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"value": variables["tv-story-list"]
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},
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"history": {
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"name": "history",
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"type": "string",
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"value": variables["tv-history-list"]
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}
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},
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"tag": "$navigator",
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"isBlock": true,
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"children": []
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};
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var navigatorWidgetNode = new navigator.navigator(navigatorTree, {
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wiki: this.wiki,
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document : this.srcDocument,
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parentWidget: $tw.rootWidget
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});
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navigatorWidgetNode.render(modalBody,null);
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// Render the title of the message
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var headerWidgetNode = this.wiki.makeTranscludeWidget(title,{
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field: "subtitle",
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mode: "inline",
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children: [{
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type: "text",
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attributes: {
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text: {
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type: "string",
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value: title
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}}}],
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parentWidget: navigatorWidgetNode,
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document: this.srcDocument,
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variables: variables,
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importPageMacros: true
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});
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headerWidgetNode.render(headerTitle,null);
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// Render the body of the message
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var bodyWidgetNode = this.wiki.makeTranscludeWidget(title,{
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parentWidget: navigatorWidgetNode,
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document: this.srcDocument,
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variables: variables,
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importPageMacros: true
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});
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bodyWidgetNode.render(modalBody,null);
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// Setup the link if present
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if(options.downloadLink) {
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modalLink.href = options.downloadLink;
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modalLink.appendChild(this.srcDocument.createTextNode("Right-click to save changes"));
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modalBody.appendChild(modalLink);
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}
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// Render the footer of the message
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if(tiddler.fields && tiddler.fields.help) {
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var link = this.srcDocument.createElement("a");
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link.setAttribute("href",tiddler.fields.help);
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link.setAttribute("target","_blank");
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link.setAttribute("rel","noopener noreferrer");
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link.appendChild(this.srcDocument.createTextNode("Help"));
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modalFooterHelp.appendChild(link);
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modalFooterHelp.style.float = "left";
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}
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var footerWidgetNode = this.wiki.makeTranscludeWidget(title,{
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field: "footer",
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mode: "inline",
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children: [{
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type: "button",
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attributes: {
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message: {
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type: "string",
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value: "tm-close-tiddler"
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}
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},
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children: [{
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type: "text",
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attributes: {
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text: {
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type: "string",
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value: $tw.language.getString("Buttons/Close/Caption")
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}}}
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]}],
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parentWidget: navigatorWidgetNode,
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document: this.srcDocument,
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variables: variables,
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importPageMacros: true
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});
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footerWidgetNode.render(modalFooterButtons,null);
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// Set up the refresh handler
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refreshHandler = function(changes) {
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headerWidgetNode.refresh(changes,modalHeader,null);
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bodyWidgetNode.refresh(changes,modalBody,null);
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footerWidgetNode.refresh(changes,modalFooterButtons,null);
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};
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this.wiki.addEventListener("change",refreshHandler);
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// Add the close event handler
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var closeHandler = function(event) {
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// Remove our refresh handler
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self.wiki.removeEventListener("change",refreshHandler);
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// Decrease the modal count and adjust the body class
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self.modalCount--;
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self.adjustPageClass();
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// Force layout and animate the modal message away
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$tw.utils.forceLayout(modalBackdrop);
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$tw.utils.forceLayout(modalWrapper);
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$tw.utils.setStyle(modalBackdrop,[
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{opacity: "0"}
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]);
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$tw.utils.setStyle(modalWrapper,[
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{transform: "translateY(" + self.srcWindow.innerHeight + "px)"}
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]);
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// Set up an event for the transition end
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self.srcWindow.setTimeout(function() {
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if(wrapper.parentNode) {
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// Remove the modal message from the DOM
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self.srcDocument.body.removeChild(wrapper);
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}
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},duration);
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// Don't let anyone else handle the tm-close-tiddler message
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return false;
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};
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headerWidgetNode.addEventListener("tm-close-tiddler",closeHandler,false);
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bodyWidgetNode.addEventListener("tm-close-tiddler",closeHandler,false);
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footerWidgetNode.addEventListener("tm-close-tiddler",closeHandler,false);
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// Set the initial styles for the message
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$tw.utils.setStyle(modalBackdrop,[
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{opacity: "0"}
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]);
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$tw.utils.setStyle(modalWrapper,[
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{transformOrigin: "0% 0%"},
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{transform: "translateY(" + (-this.srcWindow.innerHeight) + "px)"}
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]);
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// Put the message into the document
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this.srcDocument.body.appendChild(wrapper);
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// Set up animation for the styles
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$tw.utils.setStyle(modalBackdrop,[
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{transition: "opacity " + duration + "ms ease-out"}
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]);
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$tw.utils.setStyle(modalWrapper,[
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{transition: $tw.utils.roundTripPropertyName("transform") + " " + duration + "ms ease-in-out"}
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]);
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// Force layout
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$tw.utils.forceLayout(modalBackdrop);
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$tw.utils.forceLayout(modalWrapper);
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// Set final animated styles
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$tw.utils.setStyle(modalBackdrop,[
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{opacity: "0.7"}
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]);
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$tw.utils.setStyle(modalWrapper,[
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{transform: "translateY(0px)"}
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]);
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};
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Modal.prototype.adjustPageClass = function() {
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var windowContainer = $tw.pageContainer ? ($tw.pageContainer === this.srcDocument.body.firstChild ? $tw.pageContainer : this.srcDocument.body.firstChild) : null;
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if(windowContainer) {
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$tw.utils.toggleClass(windowContainer,"tc-modal-displayed",this.modalCount > 0);
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}
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$tw.utils.toggleClass(this.srcDocument.body,"tc-modal-prevent-scroll",this.modalCount > 0);
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};
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exports.Modal = Modal;
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})();
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