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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /devtools/docs/user/tips/index.rst | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'devtools/docs/user/tips/index.rst')
-rw-r--r-- | devtools/docs/user/tips/index.rst | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/devtools/docs/user/tips/index.rst b/devtools/docs/user/tips/index.rst new file mode 100644 index 0000000000..5b9e51244b --- /dev/null +++ b/devtools/docs/user/tips/index.rst @@ -0,0 +1,144 @@ +==== +Tips +==== + +General +******* + +Screenshots: + +.. |image1| image:: screenshot_button.png + :alt: Button to take screenshots of the entire page + :width: 20 + +- Entire page: Click the screenshot button (|image1| :ref:`needs to be enabled <tools-toolbox-extra-tools>` first). +- Viewport: Click the screenshot button (|image1|) in :ref:`Responsive Design Mode <responsive-design-mode-camera-button>`. +- Node: Right-click a node within the Inspector and click :ref:`"Screenshot Node" <taking-screenshots-of-an-element>`. +- Via :doc:`Web Console command <../web_console/helpers/index>`: ``screenshot <filename.png> --fullpage``. + + +Settings: + +- Choose between a :ref:`light and a dark theme <settings-themes>` for the developer tools. +- :ref:`Change the keyboard bindings <settings-editor-preferences>` to Vim, Emacs or Sublime Text if you're used to different shortcuts. +- Check or uncheck the different tools to enable or disable them. (There are more than the default tools!) + + +Page Inspector +************** + +In the :ref:`markup view <page_inspector_ui_tour_html_pane>`: + + +- Press :kbd:`H` with a node selected to hide/show it. +- Press :kbd:`Backspace` or :kbd:`Del` with a node selected to delete it. +- :kbd:`Alt` + click on a node to expand or collapse it and all its descendants. +- Click on the last :ref:`breadcrumb button <page-inspector-how-to-examine-and-edit-html-breadcrumbs>` to scroll the selection into view in the inspector. +- Click the "ev" icon besides a node to :doc:`see all event listeners attached to it <../page_inspector/examine_event_listeners/index>`. +- Press :kbd:`S` with a node selected to see it in the page (same as right-click a node and click :ref:`Scroll Into View <page_inspector_how_to_examine_and_edit_scroll_into_view>`). +- Right-click a node and click :ref:`Use in Console<page_inspector_how_to_examine_and_edit_html_use_in_console>` to :doc:`command line <../web_console/the_command_line_interpreter/index>` as ``tempN`` variable. + + +When :ref:`selecting elements <page_inspector_select_element_button>`: + + +- :kbd:`Shift` + click to select an element but keep selecting (picker mode doesn't disengage). +- Use :kbd:`←`/:kbd:`→` to navigate to parents/children elements (if they're hard to select). + + +In the :ref:`rules view <page_inspector_ui_tour_rules_view>`: + +.. |image2| image:: picker.png + :width: 20 + +.. |image3| image:: filter.png + :width: 20 + +- Click the inspector icon |image2| next to any selector to highlight all elements that match it. +- Click the inspector icon |image2| next to the ``element{}`` rule to lock the highlighter on the current element. +- Right-click any property and select "Show MDN Docs" to view the MDN docs for this property. +- Click on the filter icon |image3| next to an overridden property to :ref:`find which other property overrides it <page-inspector-how-to-examine-and-edit-css-overridden-declarations>`. +- Right-click on a name, value, or rule to copy anything from the name, the value, the declaration or the whole rule to your clipboard. + + +Web Console +*********** + +In all panels: + +- :kbd:`Esc` opens the :doc:`split console <../web_console/split_console/index>`; useful when debugging, or inspecting nodes + + +In the :doc:`command line <../web_console/the_command_line_interpreter/index>`: + + +- :ref:`$0 <web_console_helpers_$0>` references the currently selected node. +- :ref:`$() <web_console_helpers_$>` is a shortcut to `document.querySelector() <https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector>`_ +- :ref:`$$() <web_console_helpers_$$>` returns an array with the results from `document.querySelector() <https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelector>`_. +- :ref:`copy <web_console_helpers_copy>` copies anything as a string. +- Right-click a node in the Inspector and click :ref:`Use in Console <page_inspector_how_to_examine_and_edit_html_use_in_console>` to create a :ref:`temp*N* <web_console_helpers_tempn>` variable for it. +- `console.table() <https://developer.mozilla.org/en-US/docs/Web/API/console/table>`_ displays tabular data as table. +- :ref:`help <web_console_helpers_help>` opens the MDN page describing the available commands. +- ``:screenshot <filename.png> --fullpage`` saves a screenshot to your downloads directory using the optional file name. If no filename is included, the file name will be in this format: + +.. code-block:: + + Screen Shot date at time.png + +The ``--fullpage`` parameter is optional. If you include it, the screenshot will be of the whole page, not just the section visible in the browser windows. The file name will have ``-fullpage`` appended to it as well. See :doc:`Web Console Helpers <../web_console/helpers/index>` for all parameters. + + +In the console output: + + +- Click on the inspector icon |image2| next to an element in the output to :ref:`select it within the Inspector <web_console_rich_output_highlighting_and_inspecting_dom_nodes>`. +- Check :ref:`"Enable persistent logs" <settings-common-preferences>` in the settings to keep logged messages from before even after navigation. +- Check :ref:`"Enable timestamps" <settings-web-console>` in the settings to show timestamps besides the logged messages. + + +Debugger +******** + +.. |image4| image:: black_boxing.png + :width: 20 + + +- Skip JavaScript libraries in debugging sessions via the black box icon |image4|. +- Press :kbd:`Ctrl` + :kbd:`Alt` + :kbd:`F` to search in all scripts. +- Press :kbd:`Ctrl` + :kbd:`D` to search for a function definition. +- Press :kbd:`Ctrl` + :kbd:`L` to go to a specific line. + + +Style Editor +************ + +.. |image5| image:: import_button.png + :alt: Button to import a style sheet from the file system + :width: 20 + +.. |image6| image:: create_style_sheet_button.png + :alt: Button to create a new style sheet + :width: 20 + +- The black box icon |image4| in the style sheet pane toggles the visibility of a style sheet. +- Click an :ref:`@media rule <style-editor-the-at-rules-sidebar>` to apply it in :doc:`Responsive Design Mode <../responsive_design_mode/index>`. +- Click the import button |image5| to import a style sheet or the create button |image6| to create a new one. +- Click the options button in the :ref:`style sheet pane <style-editor-the-style-sheet-pane>` and click :ref:`"Show original sources" <style-editor-source-map-support>` to toggle the display of CSS preprocessor files. + + +Network Monitor +*************** + +- Click the request summary to :doc:`compare performance of cache vs. no-cache page loading <../network_monitor/performance_analysis/index>`. +- When a request is selected click :ref:`"Edit and Resend" <network-monitor-request-list-edit-and-resend>` to modify its headers and send it again. +- Check :ref:`"enable persistent logs" <settings-common-preferences>` in the settings to keep requests from before even after navigation. +- Hover the :ref:`"js" icon within the "Cause" column <request-list-requst-list-cause-column>` to see the JavaScript stack trace, which caused the request. +- Check :ref:`"Disable HTTP Cache (when toolbox is open)" <settings_advanced_settings>` in the settings to disable the network cache while debugging network issues. + + +Storage Inspector +***************** + +- Right-click the column headers to open a menu allowing to toggle the display of the columns. +- Right-click an entry and click "Delete *name*" to delete it or "Delete All" to delete all entries. +- Select an entry to see the parsed value of it in the sidebar. |