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* 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.
16 lines
810 B
Plaintext
16 lines
810 B
Plaintext
created: 20131212175656755
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modified: 20151223222712715
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tags: Mechanisms
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title: PopupMechanism
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type: text/vnd.tiddlywiki
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The popup mechanism allows blocks of content to be selectively displayed and positioned with respect to an anchor. It has several parts:
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* [[StateTiddlers|StateMechanism]] to record whether a popup is currently displayed or not
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* The RevealWidget to selectively display the popup content
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** <<.from-version "5.2.4">> For positioning the popups relative or absolute coordinates can be used. See [[Coordinate Systems]] for more information about usage and format.
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** For "sticky" popups — those that don't close when clicking inside one — set the ''class'' attribute to `tc-popup-keep`
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* The ButtonWidget to trigger the display of the popup by setting the state tiddler appropriately
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