Zoom Page WE Autor: DW-dev

CHANGES

Version 17.12
• Per-Site and Per-Tab Full Zoom can now be applied to 'chrome:' pages in Firefox.
• Fixes problems with Google image searches and cursor not appearing in search boxes.

OVERVIEW

Zoom Page WE provides facilities to zoom a web page (either per-site or per-tab) using full-page zoom, text-only zoom and minimum font size. AutoFit (fit-to-width) zoom can be applied manually or automatically. Small images can be scaled to fit the browser window. Please see the 'Zoom Mode', 'Zoom Type' and 'Image Scaling' sections for more details.

Zoom Page WE is an alternative simpler no-restart version of the well established Zoom Page add-on.

Zoom Page WE is implemented using the new WebExtensions API and is available for both Firefox and Chrome with identical functions and user interfaces.

IMPORTANT NOTES

Use All Features To use all of the features in Zoom Page WE, the user should set 'browser.zoom.siteSpecific' to 'false' in Firefox's 'about:config' preferences (Firefox 74 or earlier) or in Zoom Page WE's Options page (Firefox 75 or later).

Touch Pad/Screen - When using a touch pad or touch screen with Zoom Page WE, unexpected zooming or jittering may occur. In this case, disable the 'Use custom Zoom Levels for Ctrl+Wheel zooming' option.

OPTIONS PAGE

The Zoom Page WE Options page can be accessed as follows:

• Firefox - Right-click on the toolbar button, select Manage Extension, click on the ••• button and select Options.

• Chrome - Right-click on the toolbar button, and then select Options.

TOOLBAR BUTTON

After installation of Zoom Page WE, there will be a new icon on the main toolbar with a blue badge showing the current zoom level.

To change the zoom level for a page, click on the Zoom Page WE toolbar button to show the popup panel, then click on one of the six buttons on the right side of the popup panel:

• Zoom Type - toggles the zoom type between Full zoom and Text zoom.
• Zoom Level (%) - shows a drop-down menu from which a specific zoom level can be selected.
• Zoom In (+) - increases the zoom level to the next defined zoom level or by a fixed zoom step.
• Zoom Out (-) - reduces the zoom level to the next defined zoom level or by a fixed zoom step.
• Zoom Autofit - adjusts the zoom level so the page contents fit the width of the browser window.
• Zoom Reset - applies the defined default full/text zoom level depending on the current zoom type.

Note, Ctrl+Click on the Zoom Reset button sets the default full/text zoom level to the currently applied zoom level.

To change the minimum font size for a page, click on the Zoom Page WE toolbar button to show the popup panel, then click on one of the two buttons on the left side of the popup panel:

• Font Minimum Size (px) - shows a drop-down from which a specific minimum font size can be selected.
• Font Reset - applies the defined default minimum font size.

Note, Ctrl+Click on the Font Reset button sets the default font size to the currently applied font size.

There are options to:

• define the set of zoom levels that are applied when zooming in/out.
• define the default full zoom level applied to all content.
• define the default text zoom levels applied to text and other (non-text) content.
• define the autofit minimum and maximum zoom levels.
• zoom to the next defined zoom level or by a fixed zoom step when zooming in/out.
• define the fixed zoom step.
• define the default minimum font size.
• adjust the line space factor for text zoom and minimum font size.
• apply text zoom and minimum font size to dynamic content (enabled by default).
• show the zoom level and minimum font size state on the button.

Note, when using Firefox, it is possible to apply zoom levels outside of 30-300 if the 'zoom.minPercent' and 'zoom.maxPercent' preferences are changed in the 'about:config' page.

CONTEXT MENU & BUTTON MENU

To change the zoom level of a page, right-click on the page contents to open the context menu, select the 'Zoom Page WE' sub-menu, and then select one of the menu items.

Alternatively, right-click on the Zoom Page WE toolbar button to open the button menu, and then select one of the menu items.

The available menu items are:

• Zoom In
• Zoom Out
• Zoom Reset
• Zoom Type
• Zoom AutoFit
• Font Reset

These menu items have the same effect as the similarly named buttons on the toolbar button popup panel.

There is an option to show/hide the Zoom Page WE submenu on the context menu.

KEYBOARD SHORTCUTS

To open the toolbar button popup panel, press Alt+Z. This shortcut can be reconfigured in the Shortcuts tab of the Zoom Page WE Options page.

To change the zoom level of a page, press one of these five keyboard shortcuts:

• Zoom In - Ctrl+Plus
• Zoom Out - Ctrl+Minus
• Zoom Reset - Ctrl+0
• Zoom Type - Ctrl+9
• Zoom AutoFit - Ctrl+8
• Font Reset - Ctrl+7

These keyboard shortcuts have the same effect as the similarly named buttons on the toolbar button popup panel.

There is an option to enable/disable the Ctrl+7, Ctrl+8 and Ctrl+9 keyboard shortcuts.

MOUSE WHEEL

To change the zoom level of a page, when the mouse is over the page contents, hold down the 'Ctrl' key (or hold down the right mouse button) and rotate the mouse wheel. Alternatively, hold down the right mouse button and rotate the mouse wheel (known as Right+Wheel zoom).

To change the zoom level of a page, when the mouse is over the right-side of the toolbar button popup panel, simply rotate the mouse wheel.

To change the minimum font size of a page, when the mouse is over the left-side of the toolbar button popup panel, simply rotate the mouse wheel.

There is an option to enable/disable using custom zoom levels (instead of Firefox's 10% steps) for 'Ctrl+Wheel' zooming.

There is an option to enable/disable Right-Button+Wheel zooming.

ZOOM MODE

There is an option to set the 'Zoom Mode' as either 'Per-Site' or 'Per-Tab'.

'Per-Site' zoom is also known as 'site-specific' zoom. 'Per-Tab' zoom is always independent in each tab.

'Per-Site' zoom can be made more specific by allowing the definition of subsites and the application of per-subsite zoom.

There is an option to automatically apply AutoFit (fit-to-width) zoom. AutoFit zoom is applied when a page is loaded or when the browser is resized. AutoFit zoom is only applied if there is no per-site zoom level already applied.

When using 'Per-Tab' zoom mode, there is an option to reset to the default zoom level when loading a page (this is the default in Chrome, but not in Firefox).

When using 'Per-Site' zoom mode, there is an option to use Per-Tab zoom when viewing images.

There is an option to use a CSS Zoom engine instead of the browser's built-in zoom engine, which is particularly useful when using Chrome, since it avoids frequent zoom popups in the address bar.

There is an option to allow the definition of subsites and the application of per-subsite zoom.

ZOOM TYPE

There is an option to set the 'Zoom Type' as either 'Full' or 'Text'.

When using the 'Full' zoom type, the currently selected zoom level will be applied to all elements (text, graphics and containers) in the page.

When using the 'Text' zoom type, the currently selected zoom level will be applied to text elements in the page, and the default other (non-text) zoom level will be applied to the other elements (graphics and containers) in the page.

IMAGE SCALING

Zoom Page WE extends Firefox's 'View Image' functionality with fit-to-window scaling for all images, including images whose natural size is less than the browser window size.

When an image is clicked, it toggles between two modes: ‘natural size’ and ‘fit-to-window’.

In ‘natural size’ mode, resizing the window does not resize the image, and the cursor is a magnifying glass containing a ‘+’ or a ‘-‘, indicating that clicking will expand or shrink the image to fit the window.

In ‘fit-to-window’ mode, resizing the window always resizes the image, and the cursor is a magnifying glass containing an ‘=’, indicating that clicking will return the image to its natural size.

There is an option to enable/disable fit-to-window scaling for all images.

There is an option to apply fit-to-window scaling when an image is loaded.

SUBSITES

Subsites can be defined to make the application of Per-Site zoom more specific.

A subsite can be defined for any 'https:', 'http:' or 'file:' page and will contain the page and/or some of its descendant pages, depending on the subsite type:

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Import    Subsite
 Value        Type

      1              *                                                     0        Page where subsite defined
                                                                                                   (subsite root)
      2              >                                                 1  1  1

      3              > 1                                         2  2  2  2  2

      4              > 2                                     3  3  3  3  3  3  3
                                                         /----------------------\
      5              > 3                           /   4  4  4  4  4  4  4  4  4   \       Subsite
                                                     /                                                \
      6              > 4                       /   5  5  5  5  5  5  5  5  5  5  5    \        Includes all
                                                 /                                                         \        descendants
      7              > 5                    /  6  6  6  6  6  6  6  6  6  6  6  6  6   \        except first
                                             /                                                                 \        3 levels
      8              > 6               /     7  7  7  7  7  7  7  7  7  7  7  7  7  7  7     \        (1,2,3)
                                         /                                    .                                    \
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                                     /                                        .                                        \
                                   /-----------------------------------------------\

In order to define subsites and to apply per-subsite zoom:

• the Zoom Mode must be set to 'Per-Site'.
• the 'Allow definition of subsites and per-subsite zoom' option must be enabled.
• the 'Set browser.zoom.siteSpecfic to false' option must be enabled (only in Firefox).

To define a subsite, navigate to the web page corresponding to the subsite root, click on the toolbar button to show the popup panel, then click on the three vertical dots on the left side of the popup panel to show the two subsite buttons, and then click on the lower button to set the subsite type.

It is possible to define a subsite for a URL path that does not have a corresponding web page by importing a user-created file. The following file would define a subsite of type "> 2" (import value 4) for a section of a website below "www.somewebsite.com/aaaa/bbbb/cccc" :

{
    "persitezoomtypes": { },
    "persitezoomlevels": { },
    "persitefontsizes": { },
    "subsitetypes": { "www.somewebsite.com/aaaa/bbbb/cccc": 4 },
}

EXPORT/IMPORT PER-SITE DATA

Zoom Page WE maintains a small amount data for each website visited. This Per-Site Data comprises zoom types, zoom levels, minimum font sizes and subsite types.

There are buttons in the options dialog to:

• export all of the current per-site data.
• import previously exported per-site data (or import a user-created file).
• clear all of the current per-site data.

SUPPORT

Please e-mail: dw-dev@gmx.com

LICENSE

Distributed under the GNU General Public License version 2.
See LICENCE.txt file and http://www.gnu.org/licenses/