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API categories | API index

DisplayHandler (interface)

Implement this interface to handle events related to browser display state. The methods of this class will be called on the UI thread.

For an example of how to implement handler see cefpython.CreateBrowser(). For a list of all handler interfaces see API > Client handlers.

Table of contents:

Callbacks

OnAddressChange

ParameterType
browserBrowser
frameFrame
urlstring
Returnvoid

Called when a frame's address has changed.

OnTitleChange

ParameterType
browserBrowser
titlestring
Returnvoid

Called when the page title changes.

OnTooltip

ParameterType
browserBrowser
text_outlist
Returnbool

Called when the browser is about to display a tooltip. text_out[0] contains the text that will be displayed in the tooltip. To handle the display of the tooltip yourself return true. Otherwise, you can optionally modify text_out[0] and then return false to allow the browser to display the tooltip. When window rendering is disabled the application is responsible for drawing tooltips and the return value is ignored.

OnStatusMessage

ParameterType
browserBrowser
valuestring
Returnvoid

Called when the browser receives a status message.

OnConsoleMessage

ParameterType
browserBrowser
messagestring
sourcestring
lineint
Returnbool

Called to display a console message. Return true to stop the message from being output to the console.

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
cefpython/api/DisplayHandler.md at master · Toroto006/cefpython · GitHub
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API categories | API index
DisplayHandler (interface)
Implement this interface to handle events related to browser display state. The methods of this class will be called on the UI thread.
For an example of how to implement handler see cefpython.CreateBrowser(). For a list of all handler interfaces see API > Client handlers.
Table of contents:
Callbacks
OnAddressChange
ParameterType
browserBrowser
frameFrame
urlstring
Returnvoid
Called when a frame's address has changed.
OnTitleChange
ParameterType
browserBrowser
titlestring
Returnvoid
Called when the page title changes.
OnTooltip
ParameterType
browserBrowser
text_outlist
Returnbool
Called when the browser is about to display a tooltip. text_out[0] contains the
text that will be displayed in the tooltip. To handle the display of the
tooltip yourself return true. Otherwise, you can optionally modify text_out[0]
and then return false to allow the browser to display the tooltip.
When window rendering is disabled the application is responsible for
drawing tooltips and the return value is ignored.
OnStatusMessage
ParameterType
browserBrowser
valuestring
Returnvoid
Called when the browser receives a status message.
OnConsoleMessage
ParameterType
browserBrowser
messagestring
sourcestring
lineint
Returnbool
Called to display a console message. Return true to stop the message from
being output to the console.

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
cefpython/api/DisplayHandler.md at master · Toroto006/cefpython · GitHub
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API categories | API index
DisplayHandler (interface)
Implement this interface to handle events related to browser display state. The methods of this class will be called on the UI thread.
For an example of how to implement handler see cefpython.CreateBrowser(). For a list of all handler interfaces see API > Client handlers.
Table of contents:
Callbacks
OnAddressChange
ParameterType
browserBrowser
frameFrame
urlstring
Returnvoid
Called when a frame's address has changed.
OnTitleChange
ParameterType
browserBrowser
titlestring
Returnvoid
Called when the page title changes.
OnTooltip
ParameterType
browserBrowser
text_outlist
Returnbool
Called when the browser is about to display a tooltip. text_out[0] contains the
text that will be displayed in the tooltip. To handle the display of the
tooltip yourself return true. Otherwise, you can optionally modify text_out[0]
and then return false to allow the browser to display the tooltip.
When window rendering is disabled the application is responsible for
drawing tooltips and the return value is ignored.
OnStatusMessage
ParameterType
browserBrowser
valuestring
Returnvoid
Called when the browser receives a status message.
OnConsoleMessage
ParameterType
browserBrowser
messagestring
sourcestring
lineint
Returnbool
Called to display a console message. Return true to stop the message from
being output to the console.

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
cefpython/api/DisplayHandler.md at master · Toroto006/cefpython · GitHub
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DisplayHandler.md
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84 lines (56 loc) · 2 KB
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84 lines (56 loc) · 2 KB
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API categories | API index
DisplayHandler (interface)
Implement this interface to handle events related to browser display state. The methods of this class will be called on the UI thread.
For an example of how to implement handler see cefpython.CreateBrowser(). For a list of all handler interfaces see API > Client handlers.
Table of contents:
Callbacks
OnAddressChange
ParameterType
browserBrowser
frameFrame
urlstring
Returnvoid
Called when a frame's address has changed.
OnTitleChange
ParameterType
browserBrowser
titlestring
Returnvoid
Called when the page title changes.
OnTooltip
ParameterType
browserBrowser
text_outlist
Returnbool
Called when the browser is about to display a tooltip. text_out[0] contains the
text that will be displayed in the tooltip. To handle the display of the
tooltip yourself return true. Otherwise, you can optionally modify text_out[0]
and then return false to allow the browser to display the tooltip.
When window rendering is disabled the application is responsible for
drawing tooltips and the return value is ignored.
OnStatusMessage
ParameterType
browserBrowser
valuestring
Returnvoid
Called when the browser receives a status message.
OnConsoleMessage
ParameterType
browserBrowser
messagestring
sourcestring
lineint
Returnbool
Called to display a console message. Return true to stop the message from
being output to the console.

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
cefpython/api/DisplayHandler.md at master · Toroto006/cefpython · GitHub
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DisplayHandler.md
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API categories | API index
DisplayHandler (interface)
Implement this interface to handle events related to browser display state. The methods of this class will be called on the UI thread.
For an example of how to implement handler see cefpython.CreateBrowser(). For a list of all handler interfaces see API > Client handlers.
Table of contents:
Callbacks
OnAddressChange
ParameterType
browserBrowser
frameFrame
urlstring
Returnvoid
Called when a frame's address has changed.
OnTitleChange
ParameterType
browserBrowser
titlestring
Returnvoid
Called when the page title changes.
OnTooltip
ParameterType
browserBrowser
text_outlist
Returnbool
Called when the browser is about to display a tooltip. text_out[0] contains the
text that will be displayed in the tooltip. To handle the display of the
tooltip yourself return true. Otherwise, you can optionally modify text_out[0]
and then return false to allow the browser to display the tooltip.
When window rendering is disabled the application is responsible for
drawing tooltips and the return value is ignored.
OnStatusMessage
ParameterType
browserBrowser
valuestring
Returnvoid
Called when the browser receives a status message.
OnConsoleMessage
ParameterType
browserBrowser
messagestring
sourcestring
lineint
Returnbool
Called to display a console message. Return true to stop the message from
being output to the console.

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
cefpython/api/DisplayHandler.md at master · Toroto006/cefpython · GitHub
Skip to content
DisplayHandler.md
Latest commit
History
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84 lines (56 loc) · 2 KB
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84 lines (56 loc) · 2 KB
Raw
API categories | API index
DisplayHandler (interface)
Implement this interface to handle events related to browser display state. The methods of this class will be called on the UI thread.
For an example of how to implement handler see cefpython.CreateBrowser(). For a list of all handler interfaces see API > Client handlers.
Table of contents:
Callbacks
OnAddressChange
ParameterType
browserBrowser
frameFrame
urlstring
Returnvoid
Called when a frame's address has changed.
OnTitleChange
ParameterType
browserBrowser
titlestring
Returnvoid
Called when the page title changes.
OnTooltip
ParameterType
browserBrowser
text_outlist
Returnbool
Called when the browser is about to display a tooltip. text_out[0] contains the
text that will be displayed in the tooltip. To handle the display of the
tooltip yourself return true. Otherwise, you can optionally modify text_out[0]
and then return false to allow the browser to display the tooltip.
When window rendering is disabled the application is responsible for
drawing tooltips and the return value is ignored.
OnStatusMessage
ParameterType
browserBrowser
valuestring
Returnvoid
Called when the browser receives a status message.
OnConsoleMessage
ParameterType
browserBrowser
messagestring
sourcestring
lineint
Returnbool
Called to display a console message. Return true to stop the message from
being output to the console.

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
})();
cefpython/api/DisplayHandler.md at master · Toroto006/cefpython · GitHub
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API categories | API index
DisplayHandler (interface)
Implement this interface to handle events related to browser display state. The methods of this class will be called on the UI thread.
For an example of how to implement handler see cefpython.CreateBrowser(). For a list of all handler interfaces see API > Client handlers.
Table of contents:
Callbacks
OnAddressChange
ParameterType
browserBrowser
frameFrame
urlstring
Returnvoid
Called when a frame's address has changed.
OnTitleChange
ParameterType
browserBrowser
titlestring
Returnvoid
Called when the page title changes.
OnTooltip
ParameterType
browserBrowser
text_outlist
Returnbool
Called when the browser is about to display a tooltip. text_out[0] contains the
text that will be displayed in the tooltip. To handle the display of the
tooltip yourself return true. Otherwise, you can optionally modify text_out[0]
and then return false to allow the browser to display the tooltip.
When window rendering is disabled the application is responsible for
drawing tooltips and the return value is ignored.
OnStatusMessage
ParameterType
browserBrowser
valuestring
Returnvoid
Called when the browser receives a status message.
OnConsoleMessage
ParameterType
browserBrowser
messagestring
sourcestring
lineint
Returnbool
Called to display a console message. Return true to stop the message from
being output to the console.