Examples with StatusTextListener org.eclipse.swt.browser.StatusTextListener used on opensource projects

Example 1 with StatusTextListener

use of org.eclipse.swt.browser.StatusTextListener in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_browser_Browser method test_StatusTextListener_hoverMouseOverLink.

/**
 * Test if hovering over a hyperlink triggers status Text change listener.
 * Logic:
 * 1) Create a page that has a hyper link (covering the whole page)
 * 2) Move shell to top left corner
 * 3) Upon compleation of page load, move cursor across whole shell.
 *    (Note, in current jUnit, browser sometimes only takes up half the shell).
 * 4) StatusTextListener should get triggered. Test passes.
 * 5) Else timeout & fail.
 *
 * Set variable "debug_show_browser" to true to see this being performed at human-observable speed.
 *
 * Note: Historically one could execute some javascript to change status bar (window.status=txt).
 * But most browsers don't support this anymore. Only hovering over a hyperlink changes status.
 *
 * StatusTextListener may be triggerd upon page load also. So this test can pass if
 * a page load sets the status text (on older browsers) or passes when the mouse hovers
 * over the hyperlink (newer Webkit2+) browser.
 */
@Test
public void test_StatusTextListener_hoverMouseOverLink() {
    AtomicBoolean statusChanged = new AtomicBoolean(false);
    int size = 500;
    // 1) Create a page that has a hyper link (covering the whole page)
    Browser browser = new Browser(shell, SWT.NONE);
    StringBuilder longhtml = new StringBuilder();
    for (int i = 0; i < 200; i++) {
        longhtml.append("text text text text text text text text text text text text text text text text text text text text text text text text<br>");
    }
    browser.setText("<a href='http://localhost'>" + longhtml + "</a>");
    // 2) Move shell to top left corner
    shell.setLocation(0, 0);
    shell.setSize(size, size);
    browser.addProgressListener(completedAdapter(event -> {
        // * 3) Upon compleation of page load, move cursor across whole shell.
        // * (Note, in current jUnit, browser sometimes only takes up half the shell).
        Display display = event.display;
        Point cachedLocation = display.getCursorLocation();
        display.setCursorLocation(20, 10);
        browser.getBounds();
        for (int i = 0; i < size; i = i + 5) {
            display.setCursorLocation(i, i);
            // Move mouse slower during debug.
            waitForMilliseconds(debug_show_browser ? 3 : 1);
        }
        // for convenience of developer. Not needed for test.
        display.setCursorLocation(cachedLocation);
    }));
    browser.addStatusTextListener(event -> {
        statusChanged.set(true);
    });
    shell.open();
    boolean passed = waitForPassCondition(() -> statusChanged.get());
    String msg = "Mouse movent over text was suppose to trigger StatusTextListener. But it didn't";
    assertTrue(msg, passed);
}