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https://we.phorge.it/source/phorge.git
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a0d63322b1
Summary: There are a bunch of unused variables in JavaScript files. These were identified with JSHint. Test Plan: It's pretty hard to test this thoroughly... on inspection, it seems that everything //should// be okay (unless we are doing weird things with the JavaScript). Reviewers: chad, #blessed_reviewers, epriestley Reviewed By: #blessed_reviewers, epriestley Subscribers: epriestley, Korvin Differential Revision: https://secure.phabricator.com/D9676
296 lines
8.1 KiB
JavaScript
296 lines
8.1 KiB
JavaScript
/**
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* @provides changeset-view-manager
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* @requires javelin-dom
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* javelin-util
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* javelin-stratcom
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* javelin-install
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* javelin-workflow
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* javelin-router
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* javelin-behavior-device
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* javelin-vector
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*/
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JX.install('ChangesetViewManager', {
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construct : function(node) {
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this._node = node;
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var data = this._getNodeData();
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this._renderURI = data.renderURI;
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this._ref = data.ref;
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this._whitespace = data.whitespace;
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this._renderer = data.renderer;
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this._highlight = data.highlight;
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this._encoding = data.encoding;
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},
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members: {
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_node: null,
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_loaded: false,
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_sequence: 0,
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_stabilize: false,
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_renderURI: null,
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_ref: null,
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_whitespace: null,
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_renderer: null,
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_highlight: null,
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_encoding: null,
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/**
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* Has the content of this changeset been loaded?
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*
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* This method returns `true` if a request has been fired, even if the
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* response has not returned yet.
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*
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* @return bool True if the content has been loaded.
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*/
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isLoaded: function() {
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return this._loaded;
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},
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/**
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* Configure stabilization of the document position on content load.
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*
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* When we dump the changeset into the document, we can try to stabilize
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* the document scroll position so that the user doesn't feel like they
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* are jumping around as things load in. This is generally useful when
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* populating initial changes.
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*
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* However, if a user explicitly requests a content load by clicking a
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* "Load" link or using the dropdown menu, this stabilization generally
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* feels unnatural, so we don't use it in response to explicit user action.
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*
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* @param bool True to stabilize the next content fill.
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* @return this
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*/
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setStabilize: function(stabilize) {
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this._stabilize = stabilize;
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return this;
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},
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/**
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* Should this changeset load immediately when the page loads?
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*
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* Normally, changes load immediately, but if a diff or commit is very
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* large we stop doing this and have the user load files explicitly, or
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* choose to load everything.
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*
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* @return bool True if the changeset should load automatically when the
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* page loads.
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*/
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shouldAutoload: function() {
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return this._getNodeData().autoload;
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},
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/**
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* Load this changeset, if it isn't already loading.
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*
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* This fires a request to fill the content of this changeset, provided
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* there isn't already a request in flight. To force a reload, use
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* @{method:reload}.
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*
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* @return this
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*/
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load: function() {
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if (this._loaded) {
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return this;
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}
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return this.reload();
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},
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/**
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* Reload the changeset content.
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*
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* This method always issues a request, even if the content is already
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* loading. To load conditionally, use @{method:load}.
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*
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* @return this
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*/
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reload: function() {
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this._loaded = true;
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this._sequence++;
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var params = {
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ref: this._ref,
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whitespace: this._whitespace || '',
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renderer: this.getRenderer() || '',
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highlight: this._highlight || '',
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encoding: this._encoding || ''
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};
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var workflow = new JX.Workflow(this._renderURI, params)
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.setHandler(JX.bind(this, this._onresponse, this._sequence));
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var routable = workflow.getRoutable();
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routable
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.setPriority(500)
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.setType('content')
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.setKey(this._getRoutableKey());
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JX.Router.getInstance().queue(routable);
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JX.DOM.setContent(
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this._getContentFrame(),
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JX.$N(
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'div',
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{className: 'differential-loading'},
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'Loading...'));
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return this;
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},
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/**
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* Get the active @{class:JX.Routable} for this changeset.
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*
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* After issuing a request with @{method:load} or @{method:reload}, you
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* can adjust routable settings (like priority) by querying the routable
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* with this method. Note that there may not be a current routable.
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*
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* @return JX.Routable|null Active routable, if one exists.
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*/
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getRoutable: function() {
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return JX.Router.getInstance().getRoutableByKey(this._getRoutableKey());
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},
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setRenderer: function(renderer) {
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this._renderer = renderer;
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return this;
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},
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getRenderer: function() {
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if (this._renderer !== null) {
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return this._renderer;
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}
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// TODO: This is a big pile of TODOs.
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// NOTE: If you load the page at one device resolution and then resize to
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// a different one we don't re-render the diffs, because it's a
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// complicated mess and you could lose inline comments, cursor positions,
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// etc.
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var renderer = (JX.Device.getDevice() == 'desktop') ? '2up' : '1up';
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// TODO: Once 1up works better, figure out when to show it.
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renderer = '2up';
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return renderer;
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},
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setEncoding: function(encoding) {
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this._encoding = encoding;
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return this;
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},
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getEncoding: function() {
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return this._encoding;
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},
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setHighlight: function(highlight) {
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this._highlight = highlight;
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return this;
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},
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getHighlight: function() {
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return this._highlight;
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},
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_getNodeData: function() {
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return JX.Stratcom.getData(this._node);
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},
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_onresponse: function(sequence, response) {
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if (sequence != this._sequence) {
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// If this isn't the most recent request, ignore it. This normally
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// means the user changed view settings between the time the page loaded
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// and the content filled.
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return;
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}
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// As we populate the changeset list, we try to hold the document scroll
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// position steady, so that, e.g., users who want to leave a comment on a
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// diff with a large number of changes don't constantly have the text
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// area scrolled off the bottom of the screen until the entire diff loads.
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//
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// There are two three major cases here:
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//
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// - If we're near the top of the document, never scroll.
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// - If we're near the bottom of the document, always scroll.
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// - Otherwise, scroll if the changes were above the midline of the
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// viewport.
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var target = this._node;
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var old_pos = JX.Vector.getScroll();
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var old_view = JX.Vector.getViewport();
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var old_dim = JX.Vector.getDocument();
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// Number of pixels away from the top or bottom of the document which
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// count as "nearby".
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var sticky = 480;
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var near_top = (old_pos.y <= sticky);
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var near_bot = ((old_pos.y + old_view.y) >= (old_dim.y - sticky));
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var target_pos = JX.Vector.getPos(target);
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var target_dim = JX.Vector.getDim(target);
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var target_mid = (target_pos.y + (target_dim.y / 2));
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var view_mid = (old_pos.y + (old_view.y / 2));
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var above_mid = (target_mid < view_mid);
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var frame = this._getContentFrame();
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JX.DOM.setContent(frame, JX.$H(response.changeset));
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if (this._stabilize) {
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if (!near_top) {
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if (near_bot || above_mid) {
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// Figure out how much taller the document got.
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var delta = (JX.Vector.getDocument().y - old_dim.y);
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window.scrollTo(old_pos.x, old_pos.y + delta);
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}
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}
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this._stabilize = false;
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}
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if (response.coverage) {
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for (var k in response.coverage) {
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try {
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JX.DOM.replace(JX.$(k), JX.$H(response.coverage[k]));
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} catch (ignored) {
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// Not terribly important.
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}
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}
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}
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},
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_getContentFrame: function() {
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return JX.DOM.find(this._node, 'div', 'changeset-view-content');
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},
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_getRoutableKey: function() {
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return 'changeset-view.' + this._ref + '.' + this._sequence;
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}
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},
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statics: {
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getForNode: function(node) {
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var data = JX.Stratcom.getData(node);
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if (!data.changesetViewManager) {
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data.changesetViewManager = new JX.ChangesetViewManager(node);
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}
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return data.changesetViewManager;
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}
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}
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});
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