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Code Issues Releases Wiki Activity

Allowed zooming in to any element with the data-tw-zoom attribute

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This commit is contained in:
Jeremy Ruston 2012-11-27 22:27:53 +00:00
parent a3c6cfdd78
commit 5fd3000838
1 changed files with 23 additions and 13 deletions
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36
core/modules/macros/zoomable.js
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@ -63,6 +63,10 @@ exports.executeMacro = function() {
return this.outerFrame; return this.outerFrame;
}; };
exports.postRenderInDom = function() {
this.zoomAll();
};
/* /*
Bring a dom node into view by setting the viewport (translation and scale factors) appropriately. Bring a dom node into view by setting the viewport (translation and scale factors) appropriately.
@ -95,19 +99,25 @@ exports.zoomAll = function() {
var node = nodes[c]; var node = nodes[c];
if(node.getAttribute && node.getAttribute("data-tw-zoom")) { if(node.getAttribute && node.getAttribute("data-tw-zoom")) {
var zoom = JSON.parse(node.getAttribute("data-tw-zoom")); var zoom = JSON.parse(node.getAttribute("data-tw-zoom"));
if(zoom) { if(zoom === true) {
if(zoom.x < bounds.left) { zoom = {
bounds.left = zoom.x; x: node.offsetLeft,
} y: node.offsetTop,
if(zoom.y < bounds.top) { w: node.scrollWidth,
bounds.top = zoom.y; h: node.scrollHeight
} };
if((zoom.x + zoom.w) > bounds.right) { }
bounds.right = zoom.x + zoom.w; if(zoom.x < bounds.left) {
} bounds.left = zoom.x;
if((zoom.y + zoom.h) > bounds.bottom) { }
bounds.bottom = zoom.y + zoom.h; if(zoom.y < bounds.top) {
} bounds.top = zoom.y;
}
if((zoom.x + zoom.w) > bounds.right) {
bounds.right = zoom.x + zoom.w;
}
if((zoom.y + zoom.h) > bounds.bottom) {
bounds.bottom = zoom.y + zoom.h;
} }
} }
if(node.hasChildNodes()) { if(node.hasChildNodes()) {