michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: /**
michael@0:  * Makes sure the source editor's scroll location doesn't change when
michael@0:  * a variable inspection popup is opened and a watch expression is
michael@0:  * also evaluated at the same time.
michael@0:  */
michael@0: 
michael@0: const TAB_URL = EXAMPLE_URL + "doc_frame-parameters.html";
michael@0: 
michael@0: function test() {
michael@0:   Task.spawn(function() {
michael@0:     let [tab, debuggee, panel] = yield initDebugger(TAB_URL);
michael@0:     let win = panel.panelWin;
michael@0:     let events = win.EVENTS;
michael@0:     let editor = win.DebuggerView.editor;
michael@0:     let editorContainer = win.document.getElementById("editor");
michael@0:     let bubble = win.DebuggerView.VariableBubble;
michael@0:     let expressions = win.DebuggerView.WatchExpressions;
michael@0:     let tooltip = bubble._tooltip.panel;
michael@0: 
michael@0:     // Allow this generator function to yield first.
michael@0:     executeSoon(() => debuggee.start());
michael@0:     yield waitForSourceAndCaretAndScopes(panel, ".html", 24);
michael@0: 
michael@0:     let expressionsEvaluated = waitForDebuggerEvents(panel, events.FETCHED_WATCH_EXPRESSIONS);
michael@0:     expressions.addExpression("this");
michael@0:     editor.focus();
michael@0:     yield expressionsEvaluated;
michael@0: 
michael@0:     // Scroll to the top of the editor and inspect variables.
michael@0:     let breakpointScrollPosition = editor.getScrollInfo().top;
michael@0:     editor.setFirstVisibleLine(0);
michael@0:     let topmostScrollPosition = editor.getScrollInfo().top;
michael@0: 
michael@0:     ok(topmostScrollPosition < breakpointScrollPosition,
michael@0:       "The editor is now scrolled to the top (0).");
michael@0:     is(editor.getFirstVisibleLine(), 0,
michael@0:       "The editor is now scrolled to the top (1).");
michael@0: 
michael@0:     let failPopup = () => ok(false, "The popup has got unexpectedly hidden.");
michael@0:     let failScroll = () => ok(false, "The editor has got unexpectedly scrolled.");
michael@0:     tooltip.addEventListener("popuphiding", failPopup);
michael@0:     editorContainer.addEventListener("scroll", failScroll);
michael@0:     editor.on("scroll", () => {
michael@0:       if (editor.getScrollInfo().top > topmostScrollPosition) {
michael@0:         ok(false, "The editor scrolled back to the breakpoint location.");
michael@0:       }
michael@0:     });
michael@0: 
michael@0:     let expressionsEvaluated = waitForDebuggerEvents(panel, events.FETCHED_WATCH_EXPRESSIONS);
michael@0:     yield openVarPopup(panel, { line: 14, ch: 15 });
michael@0:     yield expressionsEvaluated;
michael@0: 
michael@0:     tooltip.removeEventListener("popuphiding", failPopup);
michael@0:     editorContainer.removeEventListener("scroll", failScroll);
michael@0: 
michael@0:     yield resumeDebuggerThenCloseAndFinish(panel);
michael@0:   });
michael@0: }