mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-10-30 22:56:17 +00:00
3918e59cc1
* Fix popup location for tables This commit introduces the `popupAbsCoords` option to the $button widget and implements an absolut coordinate format. Coordinates for popups are stored in the format `(x,y,w,h)`. These coordinates are relative to the offset parent of the element that defines the popup. This commits adds a second format `@(x,y,w,h)`. Coordinates specified in this format a relative to the pages root element. The `popupAbsCoords` option of the $button widget enables the use of this coordinates. * Unify the declaration of the RegEx for parsing the popup-position The regular expression was declared in three locations with the same content. This commit supplies a new function `parseCoordinates` in `popup.js`. This function returns the parsed coordinates and understands the classic/absolute coordinates. This function is used in `reveal.js` and `action-popup.js` to parse the coordinates. * Add documentation for coordinate systems * Consolidate creating coordinate strings The Popup object now contains a `buildCoordinates` method that can be used to build coordinate strings. It takes an "enum" for the coordinate- system to use. This makes everything easily extensible and prevents the use of magic values. * Add tests for `parseCoordinates` and `buildCoordinates` * Add `tv-popup-abs-coords` to `collectDOMVariables` This will make the absolute coordinates available for the `DraggableWidget` and the `EventCatcherWidget`. * Add documentation for the `tv-popup-abs-coords` ... to the `DraggableWidget` and the `EventCatcherWidget`. * Fix crash when generating a static version of the TW The Popup class is not initialized in `startup.js` if `$tw.browser` is not true. After having consolidated the facilities for parsing coordinate strings into `popup.js` this breaks because the static build needs to parse coordinate stings even if no Popup module is initialized. This commit solves this problem by making `readPopupState`, `parseCoordinates` and `buildCoordinates` static methods of `popup.js`. It also adds a comment to these functions to show that these can be called safely even if the Popup-Class is not initialized.
248 lines
7.2 KiB
JavaScript
248 lines
7.2 KiB
JavaScript
/*\
|
|
title: $:/core/modules/utils/dom/popup.js
|
|
type: application/javascript
|
|
module-type: utils
|
|
|
|
Module that creates a $tw.utils.Popup object prototype that manages popups in the browser
|
|
|
|
\*/
|
|
(function(){
|
|
|
|
/*jslint node: true, browser: true */
|
|
/*global $tw: false */
|
|
"use strict";
|
|
|
|
/*
|
|
Creates a Popup object with these options:
|
|
rootElement: the DOM element to which the popup zapper should be attached
|
|
*/
|
|
var Popup = function(options) {
|
|
options = options || {};
|
|
this.rootElement = options.rootElement || document.documentElement;
|
|
this.popups = []; // Array of {title:,wiki:,domNode:} objects
|
|
};
|
|
|
|
/*
|
|
Global regular expression for parsing the location of a popup.
|
|
This is also used by the Reveal widget.
|
|
*/
|
|
exports.popupLocationRegExp = /^(@?)\((-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+),(-?[0-9\.E]+)\)$/
|
|
|
|
/*
|
|
Objekt containing the available prefixes for coordinates build with the `buildCoordinates` function:
|
|
- csOffsetParent: Uses a coordinate system based on the offset parent (no prefix).
|
|
- csAbsolute: Use an absolute coordinate system (prefix "@").
|
|
*/
|
|
exports.coordinatePrefix = { csOffsetParent: "", csAbsolute: "@" }
|
|
|
|
/*
|
|
Trigger a popup open or closed. Parameters are in a hashmap:
|
|
title: title of the tiddler where the popup details are stored
|
|
domNode: dom node to which the popup will be positioned (one of domNode or domNodeRect is required)
|
|
domNodeRect: rectangle to which the popup will be positioned
|
|
wiki: wiki
|
|
force: if specified, forces the popup state to true or false (instead of toggling it)
|
|
floating: if true, skips registering the popup, meaning that it will need manually clearing
|
|
*/
|
|
Popup.prototype.triggerPopup = function(options) {
|
|
// Check if this popup is already active
|
|
var index = this.findPopup(options.title);
|
|
// Compute the new state
|
|
var state = index === -1;
|
|
if(options.force !== undefined) {
|
|
state = options.force;
|
|
}
|
|
// Show or cancel the popup according to the new state
|
|
if(state) {
|
|
this.show(options);
|
|
} else {
|
|
this.cancel(index);
|
|
}
|
|
};
|
|
|
|
Popup.prototype.findPopup = function(title) {
|
|
var index = -1;
|
|
for(var t=0; t<this.popups.length; t++) {
|
|
if(this.popups[t].title === title) {
|
|
index = t;
|
|
}
|
|
}
|
|
return index;
|
|
};
|
|
|
|
Popup.prototype.handleEvent = function(event) {
|
|
if(event.type === "click") {
|
|
// Find out what was clicked on
|
|
var info = this.popupInfo(event.target),
|
|
cancelLevel = info.popupLevel - 1;
|
|
// Don't remove the level that was clicked on if we clicked on a handle
|
|
if(info.isHandle) {
|
|
cancelLevel++;
|
|
}
|
|
// Cancel
|
|
this.cancel(cancelLevel);
|
|
}
|
|
};
|
|
|
|
/*
|
|
Find the popup level containing a DOM node. Returns:
|
|
popupLevel: count of the number of nested popups containing the specified element
|
|
isHandle: true if the specified element is within a popup handle
|
|
*/
|
|
Popup.prototype.popupInfo = function(domNode) {
|
|
var isHandle = false,
|
|
popupCount = 0,
|
|
node = domNode;
|
|
// First check ancestors to see if we're within a popup handle
|
|
while(node) {
|
|
if($tw.utils.hasClass(node,"tc-popup-handle")) {
|
|
isHandle = true;
|
|
popupCount++;
|
|
}
|
|
if($tw.utils.hasClass(node,"tc-popup-keep")) {
|
|
isHandle = true;
|
|
}
|
|
node = node.parentNode;
|
|
}
|
|
// Then count the number of ancestor popups
|
|
node = domNode;
|
|
while(node) {
|
|
if($tw.utils.hasClass(node,"tc-popup")) {
|
|
popupCount++;
|
|
}
|
|
node = node.parentNode;
|
|
}
|
|
var info = {
|
|
popupLevel: popupCount,
|
|
isHandle: isHandle
|
|
};
|
|
return info;
|
|
};
|
|
|
|
/*
|
|
Display a popup by adding it to the stack
|
|
*/
|
|
Popup.prototype.show = function(options) {
|
|
// Find out what was clicked on
|
|
var info = this.popupInfo(options.domNode);
|
|
// Cancel any higher level popups
|
|
this.cancel(info.popupLevel);
|
|
|
|
// Store the popup details if not already there
|
|
if(!options.floating && this.findPopup(options.title) === -1) {
|
|
this.popups.push({
|
|
title: options.title,
|
|
wiki: options.wiki,
|
|
domNode: options.domNode,
|
|
noStateReference: options.noStateReference
|
|
});
|
|
}
|
|
// Set the state tiddler
|
|
var rect;
|
|
if(options.domNodeRect) {
|
|
rect = options.domNodeRect;
|
|
} else {
|
|
rect = {
|
|
left: options.domNode.offsetLeft,
|
|
top: options.domNode.offsetTop,
|
|
width: options.domNode.offsetWidth,
|
|
height: options.domNode.offsetHeight
|
|
};
|
|
}
|
|
if(options.absolute && options.domNode) {
|
|
// Walk the offsetParent chain and add the position of the offsetParents to make
|
|
// the position absolute to the root node of the page.
|
|
var currentNode = options.domNode.offsetParent;
|
|
while(currentNode) {
|
|
rect.left += currentNode.offsetLeft;
|
|
rect.top += currentNode.offsetTop;
|
|
currentNode = currentNode.offsetParent;
|
|
}
|
|
}
|
|
var popupRect = exports.buildCoordinates(options.absolute?exports.coordinatePrefix.csAbsolute:exports.coordinatePrefix.csOffsetParent,rect);
|
|
if(options.noStateReference) {
|
|
options.wiki.setText(options.title,"text",undefined,popupRect);
|
|
} else {
|
|
options.wiki.setTextReference(options.title,popupRect);
|
|
}
|
|
// Add the click handler if we have any popups
|
|
if(this.popups.length > 0) {
|
|
this.rootElement.addEventListener("click",this,true);
|
|
}
|
|
};
|
|
|
|
/*
|
|
Cancel all popups at or above a specified level or DOM node
|
|
level: popup level to cancel (0 cancels all popups)
|
|
*/
|
|
Popup.prototype.cancel = function(level) {
|
|
var numPopups = this.popups.length;
|
|
level = Math.max(0,Math.min(level,numPopups));
|
|
for(var t=level; t<numPopups; t++) {
|
|
var popup = this.popups.pop();
|
|
if(popup.title) {
|
|
if(popup.noStateReference) {
|
|
popup.wiki.deleteTiddler(popup.title);
|
|
} else {
|
|
popup.wiki.deleteTiddler($tw.utils.parseTextReference(popup.title).title);
|
|
}
|
|
}
|
|
}
|
|
if(this.popups.length === 0) {
|
|
this.rootElement.removeEventListener("click",this,false);
|
|
}
|
|
};
|
|
|
|
/*
|
|
Returns true if the specified title and text identifies an active popup.
|
|
This function is safe to call, even if the popup class was not initialized.
|
|
*/
|
|
exports.readPopupState = function(text) {
|
|
return exports.popupLocationRegExp.test(text);
|
|
};
|
|
|
|
/*
|
|
Parses a coordinate string in the format `(x,y,w,h)` or `@(x,y,z,h)` and returns
|
|
an object containing the position, width and height. The absolute-Mark is boolean
|
|
value that indicates the coordinate system of the coordinates. If they start with
|
|
an `@`, `absolute` is set to true and the coordinates are relative to the root
|
|
element. If the initial `@` is missing, they are relative to the offset parent
|
|
element and `absoute` is false.
|
|
This function is safe to call, even if the popup class was not initialized.
|
|
*/
|
|
exports.parseCoordinates = function(coordinates) {
|
|
var match = exports.popupLocationRegExp.exec(coordinates);
|
|
if(match) {
|
|
return {
|
|
absolute: (match[1] === "@"),
|
|
left: parseFloat(match[2]),
|
|
top: parseFloat(match[3]),
|
|
width: parseFloat(match[4]),
|
|
height: parseFloat(match[5])
|
|
};
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/*
|
|
Builds a coordinate string from a coordinate system identifier and an object
|
|
containing the left, top, width and height values.
|
|
Use constants defined in coordinatePrefix to specify a coordinate system.
|
|
If one of the parameters is invalid for building a coordinate string `(0,0,0,0)`
|
|
will be returned.
|
|
This function is safe to call, even if the popup class was not initialized.
|
|
*/
|
|
exports.buildCoordinates = function(prefix,position) {
|
|
var coord = prefix + "(" + position.left + "," + position.top + "," + position.width + "," + position.height + ")";
|
|
if (exports.popupLocationRegExp.test(coord)) {
|
|
return coord;
|
|
} else {
|
|
return "(0,0,0,0)";
|
|
}
|
|
}
|
|
|
|
exports.Popup = Popup;
|
|
|
|
})();
|