eclipse/samoware-multisave
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switched from executeScript() to message-based communication between scripts so the content script can be executed repeatedly

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This commit is contained in:
eclipse 2025-11-03 17:45:17 +01:00
parent 24f52b4b77
commit 89f4b2f9a6
3 changed files with 52 additions and 57 deletions
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63
background.js
View File

@ -18,6 +18,7 @@ function onFailure(error) {
console.log(`background.js: onFailure(): Promise rejected with error '${error}'`);
}
// actually download an attached file
async function downloadFile(url, filename, saveAs=false) {
console.log(`background.js: downloadFile(): url is '${url}' and filename is '${filename}'`);
return browser.downloads.download({
@ -27,57 +28,43 @@ async function downloadFile(url, filename, saveAs=false) {
});
}
// sequentially initiate download for each attached file
async function downloadAllFiles(urlsAndFilenames) {
console.log(`background.js: downloadAllFiles(): started with ${JSON.stringify(urlsAndFilenames)}`);
const currentDate = getCurrentDate();
for (let i = 0; i < urlsAndFilenames.length; i++) {
// prefix filename
let prefixedFilename = currentDate + " " + urlsAndFilenames[i].filename;
console.log(`background.js: downloadAllFiles(): i is ${i}`);
if ( i == 0 ) {
await downloadFile(urlsAndFilenames[i].url, prefixedFilename, true).then(onSuccess, onFailure);
} else {
downloadFile(urlsAndFilenames[i].url, prefixedFilename, true).then(onSuccess, onFailure);
}
await downloadFile(urlsAndFilenames[i].url, prefixedFilename, true).then(onSuccess, onFailure);
}
}
function handlePageactionClick(tab, onClickData) {
console.log("background.js: handlePageactionClick(): executing content script");
// page action handler
function handlePageactionClick(tab) {
console.log("background.js: handlePageactionClick(): sending message");
// get base url
browser.tabs.query(
{
currentWindow: true,
active: true
}
)
.then(
tabs => {
console.log(`background.js: handlePageactionClick(): tab query returned ${JSON.stringify(tabs)}`);
baseUrl = tabs[0].url;
}
)
// execute content script
browser.scripting.executeScript(
{
files: [ "/contentscript.js" ],
target:
{
tabId: tab.id,
allFrames: false
}
}
)
.then(results => {
console.log(`background.js: handlePageactionClick(): content script execution successful with results '${JSON.stringify(results)}'`);
results.forEach(r => downloadAllFiles(r.result));
browser.tabs.query({
currentWindow: true,
active: true
})
.catch(error =>
console.error(`background.js: handlePageactionClick(): The following error occured while executing a content script: ${error}`)
.then(tabs => {
console.log(`background.js: handlePageactionClick(): tab query returned ${JSON.stringify(tabs)}`);
baseUrl = tabs[0].url;
})
// send message to content script which will trigger said content script
browser.tabs.sendMessage(
tab.id,
"pageAction was clicked"
)
.then(message => {
console.log(`background.js: received a response from contentscript.js with content ${JSON.stringify(message.urlsAndFilenames)}`);
downloadAllFiles(message.urlsAndFilenames);
})
.catch(error =>
console.error(`background.js: handlePageactionClick(): The following error occured while handling a page action: ${error}`)
)
}

37
contentscript.js
View File

@ -1,14 +1,27 @@
console.log("contentscript.js started!");
//
function handleReceivedMessage(message) {
// log received message
console.log(`contentscript.js received a message with content ${message}`);
// execute script regardless of message content
const urlsAndFilenames = extractUrlsAndFilenames();
clickPrintButton();
console.log(`contentscript.js: URLs and filenames extracted -> ${JSON.stringify(urlsAndFilenames)}`);
// return data as the resolved Promise's payload
return Promise.resolve({ urlsAndFilenames: urlsAndFilenames });
};
// extract URL and filename for each mail attachment
function extractUrlsAndFilenames() {
console.log("contentscript.js: this is extractFileUrlsAndNames()");
// get the correct frame
let frame = document.querySelector("iframe.js-mail-content");
// get all divs containing attachments
let divs = frame.contentWindow.document.body.querySelectorAll(
"div.samoware-mail-message__attach__item[attachment-ref]"
);
let divs = frame.contentWindow.document.body.querySelectorAll("div.samoware-mail-message__attach__item[attachment-ref]");
// loop over divs and extract attachment information
let urlsAndFilenames = [];
@ -26,22 +39,10 @@ function extractUrlsAndFilenames() {
return urlsAndFilenames;
}
// trigger a click event on samoware's print button
function clickPrintButton() {
let printElement = document.querySelector(
'li[ng-click="printMessage(selectedMessage)"]'
);
let printElement = document.querySelector('li[ng-click="printMessage(selectedMessage)"]');
printElement.click();
}
const urlsAndFilenames = extractUrlsAndFilenames();
console.log(
`contentscript.js: URLs and filenames extracted -> ${JSON.stringify(
urlsAndFilenames
)}`
);
clickPrintButton();
console.log(`contentscript.js: clicked the print button`);
// this last statement is important – it's evaluation value is the return value for the background script
urlsAndFilenames;
browser.runtime.onMessage.addListener(handleReceivedMessage);

9
manifest.json
View File

@ -3,7 +3,7 @@
"name": "samoware-multisave",
"version": "1.0",
"description": "When using the groupware CommuniGate with the web application Samoware, this browser extension saves all attachments from the currently opened email to a directory of the user's choosing, prefixing each entry's filename with the current date. Yep, it's quite specific.",
"description": "When using the groupware CommuniGate in combination with the web application Samoware, this browser extension saves all attachments from the currently opened email to a directory of the user's choosing, prefixing each entry's filename with the current date, while also raising a print dialog for the mail body. Yep, it's quite specific.",
"icons": {
"48": "icons/samovar-48.png",
@ -34,5 +34,12 @@
"scripts": [
"background.js"
]
},
"content_scripts": [
{
"matches": ["https://communigate.aip.de/*"],
"js": ["contentscript.js"]
}
]
}