[rhmessaging-commits] rhmessaging commits: r3218 - mgmt/trunk/notes.

Author: eallen Date: 2009-03-26 15:52:23 -0400 (Thu, 26 Mar 2009) New Revision: 3218 Modified: mgmt/trunk/notes/fullpage widgets.txt Log: Changed to reflect new way of updating widgets in fullpage mode Modified: mgmt/trunk/notes/fullpage widgets.txt =================================================================== --- mgmt/trunk/notes/fullpage widgets.txt 2009-03-26 19:24:49 UTC (rev 3217) +++ mgmt/trunk/notes/fullpage widgets.txt 2009-03-26 19:52:23 UTC (rev 3218) @@ -1,6 +1,6 @@ How to implement a full page widget -Any block of HTML can be made full page in cumin. By full page, I mean it can be displayed using most of the browser windows width and height. +Any block of HTML can be made full page in cumin. By full page, I mean it can be displayed using most of the browser window's width and height. To do this, you need to add the class "fullpageable" to the block of HTML. If there is no surrounding block, you'll need to add one. For example, to make the following HTML fullpage-able: @@ -24,6 +24,27 @@ {important_stuff} </p> +Background updating of widgets and fullpage: + Sometimes the HTML you want to make fullpagable will contain one or more widgets. + If those widgets get automatically updated (using self.update_enabled = True), + AND you want the widgets to be aware of when they are being rendered full page, you need + to do three things: + 1. inherit the widget from FullPageNotify as well as any other classes + 2. in the element surrounding your widget (the same element that has the id="{id}"), add a class named fullpage_notify. + 3. in the render method for the widget, examine the return value of self.get_fullpage + + For example: + 1. class TopTable(SqlTable, FullPageNotify): + 2. [TopTable.html] + <table id="{id}" class="TopTable fullpage_notify"> + ... + </table> + 3. # rendering a table column in TopTable + def render_content(self, session, data): + width = self.parent.get_fullpage(session) + # if width is None, we are not in fullpage + # if width has a value, we are in fullpage and width is the available size in pixels + How it looks: A block of HTML that is fullpageable will have a special mouseover style. When the mouse if over any part of the HTML, there will be a light purple bar at the top of the HTML with a @@ -41,13 +62,6 @@ of the document.body. This allows the HTML to be positioned and sized to the full window. Clicking the icon again will restore the HTML to it's original position in the DOM. - Additionally, when any block of HTML is made fullpage, the current background update url is modified to - indicate that cumin is in fullpage mode. This allows any widgets contained in the fullpaged HTML to modify - how they are rendered to take advantage of the extra screen space. During render, widgets can optionally call the - self.page.get_fullpage(session) method to determine if they should render normally, or full page. - If the return of self.page.get_fullpage(session) is not None, the widget can render full page. - The value returned by self.page.get_fullpage(session) is the new width the widget can occupy. - \ No newline at end of file